README.md

best-of-scala

🏆  A ranked list of awesome Scala open-source libraries & tools. Updated weekly.

This curated list contains 390 awesome open-source projects with a total of 390K stars grouped into 22 categories. All projects are ranked by a project-quality score, which is calculated based on various metrics automatically collected from GitHub and different package managers. If you like to add or update projects, feel free to open an issue, submit a pull request, or directly edit the projects.yaml. Contributions are very welcome!

🧙‍♂️ Discover other best-of lists or create your own.

Contents

• Development Cycle 15 projects
• Database Clients 43 projects
• JSON 17 projects
• Web Frameworks 17 projects
• File Processing 7 projects
• SBT Plugins 36 projects
• Toolkits, Extensions & Ecosystems 33 projects
• Media Processing 7 projects
• Dependency Injection 8 projects
• HTTP 17 projects
• Testing 17 projects
• Security 12 projects
• Data Handling 14 projects
• Parsers 6 projects
• Reactive Programming 11 projects
• Development Environment 9 projects
• Templating Engines 5 projects
• Business Intelligence 27 projects
• Big Data 14 projects
• Distributed 11 projects
• ScalaJS 7 projects
• Logging 4 projects
• Others 51 projects

Explanation

• 🥇🥈🥉  Combined project-quality score
• ⭐️  Star count from GitHub
• 🐣  New project (less than 6 months old)
• 💤  Inactive project (9 months no activity)
• 💀  Dead project (18 months no activity)
• 📈📉  Project is trending up or down
• ➕  Project was recently added
• ❗️  Warning (e.g. missing/risky license)
• 👨‍💻  Contributors count from GitHub
• 🔀  Fork count from GitHub
• 📋  Issue count from GitHub
• ⏱️  Last update timestamp on package manager
• 📥  Download count from package manager
• 📦  Number of dependent projects
•   Libraries compatible with ZIO
•   Libraries spawned from or a part of PlayFramework
•   Projects compatible with Scala.js
•   Projects compatible with Scala 3

Development Cycle

Tools for compiling, testing, packaging, formatting, linting, ... your Scala code

gitbucket (🥇34 · ⭐ 9K) - A Git platform powered by Scala with easy installation, high.. Apache-2

• GitHub (👨‍💻 200 · 🔀 1.2K · 📥 720K · 📦 21 · 📋 1.8K - 18% open · ⏱️ 16.11.2023):

   git clone https://github.com/gitbucket/gitbucket
  

sbt (🥇33 · ⭐ 4.7K) - sbt, the interactive build tool. Apache-2

• GitHub (👨‍💻 410 · 🔀 920 · 📥 12M · 📋 4.1K - 18% open · ⏱️ 02.11.2023):

   git clone https://github.com/sbt/sbt
  

mill (🥈29 · ⭐ 1.9K) - Your shiny new Java/Scala build tool!. MIT

• GitHub (👨‍💻 210 · 🔀 320 · 📥 1.3M · 📋 800 - 14% open · ⏱️ 16.11.2023):

   git clone https://github.com/com-lihaoyi/mill
  

metals (🥈27 · ⭐ 2K) - Scala language server with rich IDE features. Apache-2

• GitHub (👨‍💻 180 · 🔀 300 · 📥 29 · 📋 1.7K - 15% open · ⏱️ 16.11.2023):

   git clone https://github.com/scalameta/metals
  

bloop (🥈26 · ⭐ 860) - Bloop is a build server and CLI tool to compile, test and run.. Apache-2

• GitHub (👨‍💻 140 · 🔀 190 · 📥 170K · 📋 720 - 17% open · ⏱️ 16.11.2023):

   git clone https://github.com/scalacenter/bloop
  

scala-cli (🥈26 · ⭐ 450) - Scala CLI is a command-line tool to interact with the Scala.. Apache-2

• GitHub (👨‍💻 71 · 🔀 99 · 📥 640K · 📋 720 - 25% open · ⏱️ 16.11.2023):

   git clone https://github.com/VirtusLab/scala-cli
  

giter8 (🥉22 · ⭐ 1.7K) - a command line tool to apply templates defined on GitHub. Apache-2

• GitHub (👨‍💻 83 · 🔀 230 · 📋 270 - 15% open · ⏱️ 24.10.2023):

   git clone https://github.com/foundweekends/giter8
  

scalafix (🥉22 · ⭐ 770) - Refactoring and linting tool for Scala. BSD-3

• GitHub (👨‍💻 100 · 🔀 180 · 📥 35 · 📋 660 - 10% open · ⏱️ 16.11.2023):

   git clone https://github.com/scalacenter/scalafix
  

wartremover (🥉20 · ⭐ 1K) - Flexible Scala code linting tool. Apache-2

• GitHub (👨‍💻 58 · 🔀 120 · 📥 490 · 📋 340 - 31% open · ⏱️ 11.11.2023):

   git clone https://github.com/wartremover/wartremover
  

scapegoat (🥉20 · ⭐ 500) - Scala compiler plugin for static code analysis. Apache-2

• GitHub (👨‍💻 63 · 🔀 82 · 📋 240 - 17% open · ⏱️ 12.11.2023):

   git clone https://github.com/scapegoat-scala/scapegoat
  

bleep (🥉18 · ⭐ 130) - A bleeping fast scala build tool!. MIT

• GitHub (👨‍💻 14 · 🔀 21 · 📥 4.2K · 📋 94 - 52% open · ⏱️ 23.09.2023):

   git clone https://github.com/oyvindberg/bleep
  

Show 4 hidden projects...

• scalariform (🥉18 · ⭐ 530 · 💀) - Scala source code formatter. MIT
• scalastyle (🥉16 · ⭐ 680 · 💀) - scalastyle. Apache-2
• fury (🥉11 · ⭐ 13 · 📉) - A build tool for Scala. Apache-2
• codacy-scalameta (🥉10 · ⭐ 35) - Codacy tool for Scalameta. ❗Unlicensed

Database Clients

Libraries for connecting to, operating, and querying databases.

doobie (🥇25 · ⭐ 2.1K) - Functional JDBC layer for Scala. MIT

• GitHub (👨‍💻 170 · 🔀 340 · 📋 540 - 27% open · ⏱️ 13.11.2023):

   git clone https://github.com/tpolecat/doobie
  

elastic4s (🥇25 · ⭐ 1.6K) - Elasticsearch Scala Client - Reactive, Non Blocking, Type.. Apache-2

• GitHub (👨‍💻 400 · 🔀 690 · 📋 1.1K - 1% open · ⏱️ 14.11.2023):

   git clone https://github.com/sksamuel/elastic4s
  

• Maven:

   <dependency>
   	<groupId>com.sksamuel.elastic4s</groupId>
   	<artifactId>elastic4s_2.13</artifactId>
   	<version>[VERSION]</version>
   </dependency>
  

scalikejdbc (🥇25 · ⭐ 1.2K) - A tidy SQL-based DB access library for Scala developers... Apache-2

• GitHub (👨‍💻 100 · 🔀 220 · 📋 480 - 6% open · ⏱️ 16.11.2023):

   git clone https://github.com/scalikejdbc/scalikejdbc
  

• Maven (📦 14 · ⏱️ 20.10.2023):

   <dependency>
   	<groupId>org.scalikejdbc</groupId>
   	<artifactId>scalikejdbc_2.13</artifactId>
   	<version>[VERSION]</version>
   </dependency>
  

slick (🥇24 · ⭐ 2.6K) - Slick (Scala Language Integrated Connection Kit) is a modern.. BSD-2

• GitHub (👨‍💻 200 · 🔀 620 · 📋 1.4K - 30% open · ⏱️ 16.11.2023):

   git clone https://github.com/slick/slick
  

quill (🥇24 · ⭐ 2.1K) - Compile-time Language Integrated Queries for Scala. Apache-2

• GitHub (👨‍💻 150 · 🔀 340 · 📋 1.1K - 29% open · ⏱️ 09.11.2023):

   git clone https://github.com/zio/zio-quill
  

skunk (🥈22 · ⭐ 1.5K) - A data access library for Scala + Postgres. MIT

• GitHub (👨‍💻 72 · 🔀 150 · 📋 150 - 57% open · ⏱️ 13.11.2023):

   git clone https://github.com/typelevel/skunk
  

slick-pg (🥈21 · ⭐ 830) - Slick extensions for PostgreSQL. BSD-2

• GitHub (👨‍💻 93 · 🔀 180 · 📋 380 - 29% open · ⏱️ 15.09.2023):

   git clone https://github.com/tminglei/slick-pg
  

scanamo (🥈20 · ⭐ 320) - Simpler DynamoDB access for Scala. Apache-2

• GitHub (👨‍💻 85 · 🔀 120 · 📋 230 - 32% open · ⏱️ 20.10.2023):

   git clone https://github.com/scanamo/scanamo
  

ReactiveMongo (🥈19 · ⭐ 850) - Non-blocking, Reactive MongoDB Driver for Scala. Apache-2

• GitHub (👨‍💻 88 · 🔀 230 · 📋 390 - 4% open · ⏱️ 12.11.2023):

   git clone https://github.com/ReactiveMongo/ReactiveMongo
  

neotypes (🥈19 · ⭐ 150) - Scala lightweight, type-safe, asynchronous driver for neo4j. MIT

• GitHub (👨‍💻 15 · 🔀 31 · 📋 67 - 22% open · ⏱️ 15.11.2023):

   git clone https://github.com/neotypes/neotypes
  

squeryl (🥈17 · ⭐ 580) - A Scala DSL for talking with databases with minimum verbosity.. Apache-2

• GitHub (👨‍💻 60 · 🔀 140 · 📋 150 - 26% open · ⏱️ 14.11.2023):

   git clone https://github.com/squeryl/squeryl
  

anorm (🥈17 · ⭐ 230) - The Anorm database library. Apache-2

• GitHub (👨‍💻 55 · 🔀 71 · 📋 70 - 8% open · ⏱️ 09.11.2023):

   git clone https://github.com/playframework/anorm
  

pulsar4s (🥈16 · ⭐ 220 · 💤) - Idiomatic, typesafe, and reactive Scala client for Apache.. Apache-2

• GitHub (👨‍💻 23 · 🔀 42 · 📋 63 - 33% open · ⏱️ 08.01.2023):

   git clone https://github.com/CleverCloud/pulsar4s
  

relate (🥈16 · ⭐ 160) - Performant database access in Scala. Apache-2

• GitHub (👨‍💻 19 · 🔀 17 · 📥 1.6K · 📋 28 - 53% open · ⏱️ 15.11.2023):

   git clone https://github.com/lucidsoftware/relate
  

zio-redis (🥈16 · ⭐ 110) - A ZIO-based redis client. Apache-2

• GitHub (👨‍💻 40 · 🔀 62 · 📋 130 - 15% open · ⏱️ 08.11.2023):

   git clone https://github.com/zio/zio-redis
  

zio-elasticsearch (🥈16 · ⭐ 57) - ZIO Elasticsearch is a type-safe and streaming-.. Apache-2

• GitHub (👨‍💻 19 · 🔀 18 · 📋 45 - 24% open · ⏱️ 15.11.2023):

   git clone https://github.com/lambdaworks/zio-elasticsearch
  

• Maven (⏱️ 05.08.2023):

   <dependency>
   	<groupId>io.lambdaworks</groupId>
   	<artifactId>zio-elasticsearch_3</artifactId>
   	<version>[VERSION]</version>
   </dependency>
  

clickhouse-scala-client (🥉15 · ⭐ 110) - Clickhouse Scala Client with Reactive Streams support. ❗️LGPL-3.0

• GitHub (👨‍💻 17 · 🔀 23 · 📋 34 - 41% open · ⏱️ 13.11.2023):

   git clone https://github.com/crobox/clickhouse-scala-client
  

couchbase-jvm-clients (🥉15 · ⭐ 42) - The Couchbase Monorepo for JVM Clients: Java, Scala,.. Apache-2

• GitHub (👨‍💻 22 · 🔀 36 · ⏱️ 16.11.2023):

   git clone https://github.com/couchbase/couchbase-jvm-clients
  

zio-dynamodb (🥉15 · ⭐ 36) - Simple, type-safe, and efficient access to DynamoDB. Apache-2

• GitHub (👨‍💻 12 · 🔀 14 · 📋 67 - 43% open · ⏱️ 11.11.2023):

   git clone https://github.com/zio/zio-dynamodb
  

laserdisc (🥉13 · ⭐ 90) - A Future-free Fs2 native pure FP Redis client. MIT

• GitHub (👨‍💻 11 · 🔀 14 · 📋 25 - 56% open · ⏱️ 08.11.2023):

   git clone https://github.com/laserdisc-io/laserdisc
  

kvs (🥉8 · ⭐ 22) - Highly available distributed strong eventual consistent and sequentially.. MIT

• GitHub (👨‍💻 16 · 🔀 2 · 📋 14 - 21% open · ⏱️ 19.08.2023):

   git clone https://github.com/zero-deps/kvs
  

Show 22 hidden projects...

• phantom (🥈19 · ⭐ 1K · 💀) - Schema safe, type-safe, reactive Scala driver for.. Apache-2
• rediscala (🥈16 · ⭐ 790 · 💀) - Non-blocking, Reactive Redis driver for Scala (with Sentinel.. Apache-2
• scala-activerecord (🥉15 · ⭐ 320 · 💀) - ActiveRecord-like ORM library for Scala. MIT
• scala-redis (🥉14 · ⭐ 1K · 💀) - A scala library for connecting to a redis server, or a.. ❗Unlicensed
• casbah (🥉14 · ⭐ 530 · 💀) - Casbah is now officially end-of-life (EOL). ❗Unlicensed
• finagle-postgres (🥉14 · ⭐ 82 · 💀) - PostgreSQL protocol support for Finagle. Apache-2
• scredis (🥉13 · ⭐ 150 · 💀) - Non-blocking, ultra-fast Scala Redis client built on top of Akka.. Apache-2
• scruid (🥉13 · ⭐ 120 · 💀) - Scala + Druid: Scruid. A library that allows you to compose.. Apache-2
• molecule (🥉13 · ⭐ 6) - Molecule translates custom Scala code to database queries.. Apache-2
• salat (🥉12 · ⭐ 490 · 💀) - Salat is a simple serialization library for case classes. ❗Unlicensed
• scala-forklift (🥉11 · ⭐ 190 · 💀) - Type-safe data migration tool for Slick, Git and.. ❗Unlicensed
• couchdb-scala (🥉11 · ⭐ 65 · 💀) - A purely functional Scala client for CouchDB. Apache-2
• longevity (🥉10 · ⭐ 100 · 💀) - A Persistence Framework for Scala and NoSQL. ❗Unlicensed
• lucene4s (🥉9 · ⭐ 54 · 💀) - Light-weight convenience wrapper around Lucene to simplify.. MIT
• ReactiveCouchbase-rs-core (🥉9 · ⭐ 26 · 💀) - New ReactiveCouchbase driver using reactive-streams. Apache-2
• akka-persistence-gcp-datastore (🥉9 · ⭐ 19 · 💀) - akka-persistence-gcp-datastore is a journal and.. Apache-2
• shade (🥉8 · ⭐ 110 · 💀) - Memcached client for Scala. MIT
• morpheus (🥉8 · ⭐ 100 · 💀) - Reactive type-safe Scala driver for SQL databases. ❗Unlicensed
• scalarelational (🥉8 · ⭐ 58 · 💀) - Type-Safe framework for defining, modifying, and.. ❗Unlicensed
• etcd4s (🥉8 · ⭐ 31 · 💀) - Scala etcd client implementing V3 APIs. MIT
• scala-sql (🥉7 · ⭐ 90) - scala SQL api. ❗Unlicensed
• mapperdao (🥉7 · ⭐ 14 · 💀) - A Scala ORM library. ❗Unlicensed

JSON

Libraries that handle JSON format.

circe (🥇28 · ⭐ 2.4K) - Yet another JSON library for Scala. Apache-2

• GitHub (👨‍💻 270 · 🔀 530 · 📋 610 - 32% open · ⏱️ 16.11.2023):

   git clone https://github.com/circe/circe
  

• Maven (📦 440 · ⏱️ 31.08.2023):

   <dependency>
   	<groupId>io.circe</groupId>
   	<artifactId>circe-core_2.13</artifactId>
   	<version>[VERSION]</version>
   </dependency>
  

argonaut (🥇23 · ⭐ 550) - Purely functional JSON parser and library in scala. BSD-3

• GitHub (👨‍💻 59 · 🔀 110 · 📋 200 - 13% open · ⏱️ 16.11.2023):

   git clone https://github.com/argonaut-io/argonaut
  

• Maven (📦 21 · ⏱️ 09.10.2023):

   <dependency>
   	<groupId>io.argonaut</groupId>
   	<artifactId>argonaut_2.13</artifactId>
   	<version>[VERSION]</version>
   </dependency>
  

json4s (🥈20 · ⭐ 1.5K) - JSON library. Apache-2

• GitHub (👨‍💻 130 · 🔀 350 · 📋 420 - 39% open · ⏱️ 16.11.2023):

   git clone https://github.com/json4s/json4s
  

jsoniter-scala (🥈20 · ⭐ 690) - Scala macros for compile-time generation of safe and.. MIT

• GitHub (👨‍💻 20 · 🔀 86 · 📦 1 · 📋 290 - 20% open · ⏱️ 16.11.2023):

   git clone https://github.com/plokhotnyuk/jsoniter-scala
  

play-json (🥈20 · ⭐ 350) - The Play JSON library. Apache-2

• GitHub (👨‍💻 65 · 🔀 130 · 📋 120 - 35% open · ⏱️ 04.11.2023):

   git clone https://github.com/playframework/play-json
  

jawn (🥈19 · ⭐ 430) - Jawn is for parsing jay-sawn (JSON). MIT

• GitHub (👨‍💻 48 · 🔀 71 · 📋 69 - 18% open · ⏱️ 16.11.2023):

   git clone https://github.com/typelevel/jawn
  

zio-json (🥈19 · ⭐ 390) - Fast, secure JSON library with tight ZIO integration. Apache-2

• GitHub (👨‍💻 58 · 🔀 120 · 📋 160 - 47% open · ⏱️ 06.11.2023):

   git clone https://github.com/zio/zio-json
  

jackson-module-scala (🥉18 · ⭐ 490) - Add-on module for Jackson.. Apache-2

• GitHub (👨‍💻 59 · 🔀 140 · 📋 470 - 10% open · ⏱️ 16.11.2023):

   git clone https://github.com/FasterXML/jackson-module-scala
  

diffson (🥉16 · ⭐ 300) - A scala diff/patch library for Json. Apache-2

• GitHub (👨‍💻 31 · 🔀 52 · 📋 53 - 18% open · ⏱️ 06.05.2023):

   git clone https://github.com/gnieh/diffson
  

borer (🥉12 · ⭐ 210) - Efficient CBOR and JSON (de)serialization in Scala. MPL-2.0

• GitHub (👨‍💻 9 · 🔀 13 · 📋 120 - 6% open · ⏱️ 13.10.2023):

   git clone https://github.com/sirthias/borer
  

ScalaJack (🥉11 · ⭐ 110 · 💤) - Fast JSON parser/generator for Scala. MIT

• GitHub (👨‍💻 13 · 🔀 8 · 📋 51 - 3% open · ⏱️ 15.11.2022):

   git clone https://github.com/gzoller/ScalaJack
  

ninny-json (🥉11 · ⭐ 21) - JSON typeclasses that know the difference between null and.. Unlicense

• GitHub (👨‍💻 3 · 🔀 5 · 📋 11 - 63% open · ⏱️ 01.11.2023):

   git clone https://github.com/nrktkt/ninny-json
  

Show 5 hidden projects...

• spray-json (🥈21 · ⭐ 2.5K · 💀) - A lightweight, clean and simple JSON implementation in Scala. Apache-2
• scala-jsonapi (🥉11 · ⭐ 110 · 💀) - Scala support library for integrating the JSON API spec with.. MIT
• pushka (🥉10 · ⭐ 81 · 💀) - ABANDONED Pure Scala serialization library with annotations. Apache-2
• sbt-json (🥉8 · ⭐ 32 · 💀) - sbt plugin that generates Scala case classes for easy, statically typed.. MIT
• json (🥉3 · ⭐ 11 · 💀) - Persist-Json, a Fast Json Parser Written in Scala. ❗Unlicensed

Web Frameworks

playframework (🥇34 · ⭐ 12K) - The Community Maintained High Velocity Web Framework.. Apache-2

• GitHub (👨‍💻 960 · 🔀 4.1K · 📦 21 · 📋 3.8K - 12% open · ⏱️ 15.11.2023):

   git clone https://github.com/playframework/playframework
  

• Maven (📦 24 · ⏱️ 25.10.2023):

   <dependency>
   	<groupId>com.typesafe.play</groupId>
   	<artifactId>play_3</artifactId>
   	<version>[VERSION]</version>
   </dependency>
  

finatra (🥇22 · ⭐ 2.3K) - Fast, testable, Scala services built on TwitterServer and Finagle. Apache-2

• GitHub (👨‍💻 250 · 🔀 420 · 📋 320 - 4% open · ⏱️ 02.11.2023):

   git clone https://github.com/twitter/finatra
  

framework (🥈21 · ⭐ 1.3K) - Lift Framework. Apache-2

• GitHub (👨‍💻 120 · 🔀 280 · 📋 1.5K - 10% open · ⏱️ 11.04.2023):

   git clone https://github.com/lift/framework
  

udash-core (🥈20 · ⭐ 440) - Scala framework for building beautiful and maintainable web.. Apache-2

• GitHub (👨‍💻 37 · 🔀 36 · 📋 120 - 25% open · ⏱️ 30.10.2023):

   git clone https://github.com/UdashFramework/udash-core
  

Binding.scala (🥈19 · ⭐ 1.6K) - Reactive data-binding for Scala. MIT

• GitHub (👨‍💻 25 · 🔀 110 · 📋 110 - 40% open · ⏱️ 11.07.2023):

   git clone https://github.com/ThoughtWorksInc/Binding.scala
  

skinny-framework (🥈19 · ⭐ 740 · 💤) - Scala on Rails - A full-stack web app framework for rapid.. MIT

• GitHub (👨‍💻 32 · 🔀 73 · 📥 12K · 📦 3 · 📋 150 - 12% open · ⏱️ 14.12.2022):

   git clone https://github.com/skinny-framework/skinny-framework
  

unfiltered (🥉17 · ⭐ 710) - A toolkit for servicing HTTP requests in Scala. MIT

• GitHub (👨‍💻 88 · 🔀 110 · 📋 210 - 30% open · ⏱️ 16.11.2023):

   git clone https://github.com/unfiltered/unfiltered
  

korolev (🥉17 · ⭐ 580) - Single Page Applications running on the server side. Apache-2

• GitHub (👨‍💻 26 · 🔀 50 · 📋 240 - 6% open · ⏱️ 06.08.2023):

   git clone https://github.com/fomkin/korolev
  

xitrum (🥉16 · ⭐ 450) - Async and clustered Scala web framework and HTTP(S) server. MIT

• GitHub (👨‍💻 31 · 🔀 52 · 📋 660 - 8% open · ⏱️ 28.02.2023):

   git clone https://github.com/xitrum-framework/xitrum
  

youi (🥉16 · ⭐ 210 · 💤) - Next generation user interface and application development in Scala.. MIT

• GitHub (👨‍💻 11 · 🔀 29 · 📋 63 - 34% open · ⏱️ 07.12.2022):

   git clone https://github.com/outr/youi
  

Show 7 hidden projects...

• colossus (🥈19 · ⭐ 1.2K · 💀) - I/O and Microservice library for Scala. Apache-2
• scalatra (🥉18 · ⭐ 2.6K) - Tiny Scala high-performance, async web framework, inspired.. ❗Unlicensed
• cask (🥉15 · ⭐ 470) - Cask: a Scala HTTP micro-framework. ❗Unlicensed
• chaos (🥉14 · ⭐ 250 · 💀) - A lightweight framework for writing REST services in Scala. Apache-2
• reactive (🥉12 · ⭐ 220 · 💀) - A simple FRP library and a web UI framework built on it. ❗Unlicensed
• analogweb-scala (🥉8 · ⭐ 13 · 💤) - Tiny High Performance HTTP Server for Scala. MIT
• pagelets (🥉7 · ⭐ 77 · 💀) - A module for the Play Framework to build highly modular.. Apache-2

File Processing

Libraries that handle common file formats including YAML, CSV, etc.

laika (🥇20 · ⭐ 400) - Site and E-book Generator and Customizable Text Markup.. Apache-2

• GitHub (👨‍💻 20 · 🔀 42 · 📋 220 - 4% open · ⏱️ 12.11.2023):

   git clone https://github.com/typelevel/Laika
  

kantan.csv (🥈15 · ⭐ 340 · 💤) - CSV handling library for Scala. Apache-2

• GitHub (👨‍💻 9 · 🔀 35 · 📋 180 - 25% open · ⏱️ 06.09.2022):

   git clone https://github.com/nrinaudo/kantan.csv
  

spoiwo (🥉12 · ⭐ 180 · 💤) - Scala POI Wrapper for the spreadsheet generation in Excel:. MIT

• GitHub (👨‍💻 20 · 🔀 43 · 📋 32 - 34% open · ⏱️ 18.09.2022):

   git clone https://github.com/norbert-radyk/spoiwo
  

spata (🥉12 · ⭐ 19) - Functional, stream-based CSV processor for Scala. Apache-2

• GitHub (👨‍💻 3 · 🔀 5 · 📋 4 - 25% open · ⏱️ 23.09.2023):

   git clone https://github.com/fingo/spata
  

Show 3 hidden projects...

• scala-csv (🥈14 · ⭐ 680) - CSV Reader/Writer for Scala. ❗Unlicensed
• moultingyaml (🥉10 · ⭐ 98 · 💀) - Scala wrapper for SnakeYAML. MIT
• fm-flatfile (🥉6 · ⭐ 10) - Scala Library for Reading Flat File Data (CSV/TSV/XLS/XLSX). Apache-2

SBT Plugins

coursier (🥇29 · ⭐ 2K · 📈) - Pure Scala Artifact Fetching. Apache-2

• GitHub (👨‍💻 140 · 🔀 290 · 📥 9.7M · 📋 1.1K - 33% open · ⏱️ 16.11.2023):

   git clone https://github.com/coursier/coursier
  

sbt-assembly (🥇22 · ⭐ 1.9K) - Deploy ber-JARs. Restart processes. (port of codahale/assembly-sbt). MIT

• GitHub (👨‍💻 79 · 🔀 220 · 📋 350 - 28% open · ⏱️ 27.10.2023):

   git clone https://github.com/sbt/sbt-assembly
  

sbt-native-packager (🥇22 · ⭐ 1.6K) - sbt Native Packager. BSD-2

• GitHub (👨‍💻 270 · 🔀 440 · 📋 790 - 17% open · ⏱️ 24.07.2023):

   git clone https://github.com/sbt/sbt-native-packager
  

sbt-scoverage (🥇20 · ⭐ 630) - sbt plugin for scoverage. Apache-2

• GitHub (👨‍💻 71 · 🔀 150 · 📋 260 - 14% open · ⏱️ 25.10.2023):

   git clone https://github.com/scoverage/sbt-scoverage
  

mima (🥇20 · ⭐ 440) - A tool for catching binary incompatibility in Scala. Apache-2

• GitHub (👨‍💻 48 · 🔀 67 · 📋 210 - 12% open · ⏱️ 24.10.2023):

   git clone https://github.com/lightbend/mima
  

mdoc (🥇20 · ⭐ 370) - Typechecked markdown documentation for Scala. Apache-2

• GitHub (👨‍💻 47 · 🔀 75 · 📋 200 - 27% open · ⏱️ 10.11.2023):

   git clone https://github.com/scalameta/mdoc
  

sbt-microsites (🥇20 · ⭐ 320) - An sbt plugin to create awesome microsites for your project. Apache-2

• GitHub (👨‍💻 76 · 🔀 62 · 📋 140 - 12% open · ⏱️ 13.11.2023):

   git clone https://github.com/47degrees/sbt-microsites
  

sbt-jmh (🥈19 · ⭐ 770) - Trust no one, bench everything. - sbt plugin for JMH (Java.. Apache-2

• GitHub (👨‍💻 50 · 🔀 89 · 📋 98 - 29% open · ⏱️ 24.10.2023):

   git clone https://github.com/sbt/sbt-jmh
  

sbt-release (🥈19 · ⭐ 630) - A release plugin for sbt. Apache-2

• GitHub (👨‍💻 64 · 🔀 160 · 📋 170 - 42% open · ⏱️ 14.11.2023):

   git clone https://github.com/sbt/sbt-release
  

sbt-updates (🥈18 · ⭐ 740) - sbt plugin that can check Maven and Ivy repositories for dependency.. BSD-3

• GitHub (👨‍💻 29 · 🔀 51 · 📋 79 - 16% open · ⏱️ 16.11.2023):

   git clone https://github.com/rtimush/sbt-updates
  

sbt-eclipse (🥈18 · ⭐ 720) - Plugin for sbt to create Eclipse project definitions. Apache-2

• GitHub (👨‍💻 39 · 🔀 170 · 📋 280 - 27% open · ⏱️ 14.09.2023):

   git clone https://github.com/sbt/sbt-eclipse
  

sbt-sonatype (🥈18 · ⭐ 320) - A sbt plugin for publishing Scala/Java projects to the Maven.. Apache-2

• GitHub (👨‍💻 30 · 🔀 50 · 📋 95 - 9% open · ⏱️ 16.11.2023):

   git clone https://github.com/xerial/sbt-sonatype
  

sbt-scalafmt (🥈18 · ⭐ 170) - sbt plugin for Scalafmt. Apache-2

• GitHub (👨‍💻 27 · 🔀 36 · 📋 65 - 4% open · ⏱️ 01.11.2023):

   git clone https://github.com/scalameta/sbt-scalafmt
  

sbt-header (🥈17 · ⭐ 190) - sbt-header is an sbt plugin for creating file headers, e.g... Apache-2

• GitHub (👨‍💻 38 · 🔀 53 · 📋 87 - 11% open · ⏱️ 07.06.2023):

   git clone https://github.com/sbt/sbt-header
  

sbt-docker (🥈16 · ⭐ 730) - Create Docker images directly from sbt. MIT

• GitHub (👨‍💻 27 · 🔀 100 · 📋 90 - 23% open · ⏱️ 24.08.2023):

   git clone https://github.com/marcuslonnberg/sbt-docker
  

sbt-buildinfo (🥈16 · ⭐ 540) - I know this because build.sbt knows this. MIT

• GitHub (👨‍💻 50 · 🔀 86 · 📋 100 - 15% open · ⏱️ 05.09.2023):

   git clone https://github.com/sbt/sbt-buildinfo
  

xsbt-web-plugin (🥈16 · ⭐ 380) - Servlet support for sbt. BSD-3

• GitHub (👨‍💻 33 · 🔀 99 · 📋 260 - 4% open · ⏱️ 12.11.2023):

   git clone https://github.com/earldouglas/xsbt-web-plugin
  

sbt-git (🥈16 · ⭐ 340 · 💤) - A git plugin for sbt. BSD-2

• GitHub (👨‍💻 50 · 🔀 96 · 📋 110 - 25% open · ⏱️ 22.11.2022):

   git clone https://github.com/sbt/sbt-git
  

sbt-ci-release (🥈16 · ⭐ 270) - sbt plugin to automate Sonatype releases from GitHub Actions. Apache-2

• GitHub (👨‍💻 55 · 🔀 66 · 📋 81 - 17% open · ⏱️ 02.11.2023):

   git clone https://github.com/sbt/sbt-ci-release
  

sbt-doctest (🥈16 · ⭐ 180) - Doctest for scala. MIT

• GitHub (👨‍💻 26 · 🔀 27 · 📋 62 - 24% open · ⏱️ 14.11.2023):

   git clone https://github.com/tkawachi/sbt-doctest
  

sbt-dependency-check (🥉15 · ⭐ 260) - SBT Plugin for OWASP DependencyCheck. Monitor your.. Apache-2

• GitHub (👨‍💻 18 · 🔀 35 · 📋 83 - 4% open · ⏱️ 15.11.2023):

   git clone https://github.com/albuch/sbt-dependency-check
  

sbt-unidoc (🥉15 · ⭐ 120) - sbt plugin to create a unified Scaladoc or Javadoc API document.. Apache-2

• GitHub (👨‍💻 23 · 🔀 27 · 📋 58 - 39% open · ⏱️ 25.10.2023):

   git clone https://github.com/sbt/sbt-unidoc
  

splain (🥉14 · ⭐ 370) - better implicit errors for scala. MIT

• GitHub (👨‍💻 18 · 🔀 31 · 📥 210 · 📋 65 - 15% open · ⏱️ 05.11.2023):

   git clone https://github.com/tek/splain
  

sbt-revolver (🥉13 · ⭐ 840) - An SBT plugin for dangerously fast development turnaround in.. Apache-2

• GitHub (👨‍💻 16 · 🔀 54 · 📋 85 - 24% open · ⏱️ 08.04.2023):

   git clone https://github.com/spray/sbt-revolver
  

sbt-api-mappings (🥉13 · ⭐ 88) - An Sbt plugin that fills apiMappings for common Scala.. Apache-2

• GitHub (👨‍💻 12 · 🔀 17 · 📋 14 - 57% open · ⏱️ 15.07.2023):

   git clone https://github.com/ThoughtWorksInc/sbt-api-mappings
  

sbt-ide-settings (🥉12 · ⭐ 57) - SBT plugin for tweaking various IDE settings. Apache-2

• GitHub (👨‍💻 7 · 🔀 7 · 📋 14 - 57% open · ⏱️ 10.10.2023):

   git clone https://github.com/Jetbrains/sbt-ide-settings
  

sbt-scala-js-map (🥉11 · ⭐ 36) - A Sbt plugin that configures source mapping for.. Apache-2

• GitHub (👨‍💻 4 · 🔀 3 · 📋 5 - 60% open · ⏱️ 15.07.2023):

   git clone https://github.com/ThoughtWorksInc/sbt-scala-js-map
  

Show 9 hidden projects...

• sbt-pack (🥉15 · ⭐ 490) - A sbt plugin for creating distributable Scala packages. ❗Unlicensed
• tut (🥉13 · ⭐ 600 · 💀) - doc/tutorial generator for scala. MIT
• scala-clippy (🥉13 · ⭐ 320 · 💀) - Good advice for Scala compiler errors. Apache-2
• sbt-site (🥉13 · ⭐ 180) - Site generation for sbt. ❗Unlicensed
• better-monadic-for (🥉12 · ⭐ 690 · 💀) - Desugaring scala for without implicit withFilters. MIT
• sbt-pgp (🥉12 · ⭐ 140 · 💤) - PGP plugin for sbt. ❗Unlicensed
• sbt-groll (🥉10 · ⭐ 130 · 💀) - sbt plugin to roll the Git history. Apache-2
• sbt-ghpages (🥉10 · ⭐ 94) - git, site and ghpages support for sbt projects. ❗Unlicensed
• sbt-deploy-ssh (🥉10 · ⭐ 27 · 💀) - SBT deploy plugin. MIT

Toolkits, Extensions & Ecosystems

Extensions and platforms that provide various abstractions.

zio (🥇32 · ⭐ 3.9K) - ZIO A type-safe, composable library for async and concurrent.. Apache-2

• GitHub (👨‍💻 680 · 🔀 1.2K · 📋 2.4K - 15% open · ⏱️ 16.11.2023):

   git clone https://github.com/zio/zio
  

• Maven (📦 900 · ⏱️ 06.11.2023):

   <dependency>
   	<groupId>dev.zio</groupId>
   	<artifactId>zio_2.13</artifactId>
   	<version>[VERSION]</version>
   </dependency>
  

shapeless (🥇26 · ⭐ 3.3K) - Generic programming for Scala. Apache-2

• GitHub (👨‍💻 150 · 🔀 540 · 📦 120 · 📋 420 - 8% open · ⏱️ 07.11.2023):

   git clone https://github.com/milessabin/shapeless
  

ammonite (🥇26 · ⭐ 2.6K) - Scala Scripting. MIT

• GitHub (👨‍💻 140 · 🔀 370 · 📥 880K · 📋 800 - 15% open · ⏱️ 16.11.2023):

   git clone https://github.com/com-lihaoyi/ammonite
  

refined (🥈24 · ⭐ 1.7K) - Refinement types for Scala. MIT

• GitHub (👨‍💻 77 · 🔀 150 · 📋 220 - 31% open · ⏱️ 13.11.2023):

   git clone https://github.com/fthomas/refined
  

scalameta (🥈23 · ⭐ 1.1K) - Library to read, analyze, transform and generate Scala programs. BSD-3

• GitHub (👨‍💻 120 · 🔀 220 · 📦 2 · 📋 1.2K - 11% open · ⏱️ 16.11.2023):

   git clone https://github.com/scalameta/scalameta
  

Monocle (🥈22 · ⭐ 1.6K) - Optics library for Scala. MIT

• GitHub (👨‍💻 120 · 🔀 200 · 📋 380 - 11% open · ⏱️ 14.11.2023):

   git clone https://github.com/optics-dev/monocle
  

util (🥈21 · ⭐ 2.7K) - Wonderful reusable code from Twitter. Apache-2

• GitHub (👨‍💻 320 · 🔀 600 · 📋 120 - 9% open · ⏱️ 02.11.2023):

   git clone https://github.com/twitter/util
  

chimney (🥈21 · ⭐ 1.1K) - Scala library for boilerplate-free, type-safe data.. Apache-2

• GitHub (👨‍💻 29 · 🔀 79 · 📋 180 - 13% open · ⏱️ 06.11.2023):

   git clone https://github.com/scalalandio/chimney
  

quicklens (🥈19 · ⭐ 800) - Modify deeply nested case class fields. Apache-2

• GitHub (👨‍💻 25 · 🔀 50 · 📋 49 - 40% open · ⏱️ 23.10.2023):

   git clone https://github.com/softwaremill/quicklens
  

eff (🥈19 · ⭐ 570) - Eff monad for cats - https://atnos-org.github.io/eff. MIT

• GitHub (👨‍💻 42 · 🔀 80 · 📋 67 - 5% open · ⏱️ 14.11.2023):

   git clone https://github.com/atnos-org/eff
  

better-files (🥈18 · ⭐ 1.5K) - Simple, safe and intuitive Scala I/O. MIT

• GitHub (👨‍💻 61 · 🔀 150 · 📋 210 - 16% open · ⏱️ 02.10.2023):

   git clone https://github.com/pathikrit/better-files
  

enumeratum (🥈18 · ⭐ 1.2K) - A type-safe, reflection-free, powerful enumeration.. MIT

• GitHub (👨‍💻 90 · 🔀 150 · 📋 130 - 22% open · ⏱️ 12.11.2023):

   git clone https://github.com/lloydmeta/enumeratum
  

async (🥈18 · ⭐ 1.1K) - An asynchronous programming facility for Scala. Apache-2

• GitHub (👨‍💻 28 · 🔀 89 · 📋 88 - 14% open · ⏱️ 26.10.2023):

   git clone https://github.com/scala/scala-async
  

scribe (🥈18 · ⭐ 480) - The fastest logging library in the world. Built from scratch in.. MIT

• GitHub (👨‍💻 18 · 🔀 38 · 📋 160 - 9% open · ⏱️ 10.09.2023):

   git clone https://github.com/outr/scribe
  

Dsl.scala (🥉16 · ⭐ 260) - A framework to create embedded Domain-Specific Languages.. Apache-2

• GitHub (👨‍💻 5 · 🔀 29 · 📋 35 - 48% open · ⏱️ 02.07.2023):

   git clone https://github.com/ThoughtWorksInc/Dsl.scala
  

each (🥉16 · ⭐ 250) - A macro library that converts native imperative syntax to scalazs.. Apache-2

• GitHub (👨‍💻 15 · 🔀 27 · 📋 38 - 26% open · ⏱️ 03.02.2023):

   git clone https://github.com/ThoughtWorksInc/each
  

simulacrum (🥉15 · ⭐ 940 · 💤) - First class syntax support for type classes in Scala. BSD-3

• GitHub (👨‍💻 34 · 🔀 62 · 📋 73 - 38% open · ⏱️ 21.01.2023):

   git clone https://github.com/typelevel/simulacrum
  

nscala-time (🥉15 · ⭐ 870) - A new Scala wrapper for Joda Time based on scala-time. Apache-2

• GitHub (👨‍💻 25 · 🔀 86 · 📋 55 - 10% open · ⏱️ 23.10.2023):

   git clone https://github.com/nscala-time/nscala-time
  

scala-graph (🥉15 · ⭐ 550) - Graph for Scala is intended to provide basic graph.. Apache-2

• GitHub (👨‍💻 18 · 🔀 72 · 📋 120 - 12% open · ⏱️ 17.06.2023):

   git clone https://github.com/scala-graph/scala-graph
  

larray (🥉15 · ⭐ 400 · 💤) - Large off-heap arrays and mmap files for Scala and Java. Apache-2

• GitHub (👨‍💻 11 · 🔀 41 · 📋 55 - 40% open · ⏱️ 25.11.2022):

   git clone https://github.com/xerial/larray
  

chronoscala (🥉15 · ⭐ 67) - A JSR-310 port of nscala_time. MIT

• GitHub (👨‍💻 10 · 🔀 8 · 📋 15 - 13% open · ⏱️ 11.11.2023):

   git clone https://github.com/chronoscala/chronoscala
  

enableIf.scala (🥉13 · ⭐ 65) - A library that toggles Scala code at compile-time, like #if.. Apache-2

• GitHub (👨‍💻 6 · 🔀 5 · 📋 10 - 50% open · ⏱️ 02.07.2023):

   git clone https://github.com/ThoughtWorksInc/enableIf.scala
  

Show 11 hidden projects...

• cats (🥇27 · ⭐ 5.1K) - Lightweight, modular, and extensible library for.. ❗Unlicensed
• scalaz (🥈20 · ⭐ 4.6K) - Principled Functional Programming in Scala. ❗Unlicensed
• cassovary (🥉17 · ⭐ 1K · 💀) - Cassovary is a simple big graph processing library for the JVM. Apache-2
• freestyle (🥉17 · ⭐ 620 · 💀) - A cohesive & pragmatic framework of FP centric Scala.. Apache-2
• ox (🥉15 · ⭐ 230) - Developer-friendly structured concurrency library for the JVM. ❗Unlicensed
• hamsters (🥉14 · ⭐ 290 · 💀) - A mini Scala utility library. Apache-2
• squid (🥉12 · ⭐ 200 · 💀) - Squid type-safe metaprogramming and compilation framework for Scala. Apache-2
• scala-records (🥉11 · ⭐ 160 · 💀) - Labeled records for Scala based on structural.. BSD-3
• Freasy-Monad (🥉8 · ⭐ 110 · 💀) - Easy way to create Free Monad using Scala macros with.. MIT
• freedsl (🥉8 · ⭐ 37 · 💀) - Practical effect composition library based on abstract wrapping.. ❗Unlicensed
• lamma (🥉6 · ⭐ 90 · 💀) - Lamma schedule generator for Scala is a professional schedule.. ❗Unlicensed

Media Processing

Libraries for audio, image, and video handling and processing

scrimage (🥇20 · ⭐ 1K · 📉) - JVM - Java, Kotlin, Scala image processing library. Apache-2

• GitHub (👨‍💻 56 · 🔀 140 · 📋 200 - 2% open · ⏱️ 04.11.2023):

   git clone https://github.com/sksamuel/scrimage
  

scalismo (🥈17 · ⭐ 240) - Scalable Image Analysis and Shape Modelling. Apache-2

• GitHub (👨‍💻 22 · 🔀 64 · 📋 76 - 17% open · ⏱️ 30.06.2023):

   git clone https://github.com/unibas-gravis/scalismo
  

media4s (🥉10 · ⭐ 30) - Scala command-line wrapper around ffmpeg, ffprobe, ImageMagick, and other.. MIT

• GitHub (👨‍💻 3 · 🔀 4 · ⏱️ 26.09.2023):

   git clone https://github.com/outr/media4s
  

Show 4 hidden projects...

• scalacollider (🥈11 · ⭐ 190 · 💀) - A Scala sound synthesis library based on SuperCollider. ❗️AGPL-3.0
• sbt-javacv (🥉9 · ⭐ 90 · 💀) - Start using OpenCV in your JVM project in just 1 line, no separate.. MIT
• scala-phash (🥉8 · ⭐ 19 · 💀) - Image comparison by hash codes. MIT
• chromaprint.scala (🥉7 · ⭐ 84 · 💀) - Chromaprint/AcoustID audio fingerprinting for the JVM. ❗Unlicensed

Dependency Injection

izumi (🥇22 · ⭐ 590) - Productivity-oriented collection of lightweight fancy stuff for.. BSD-2

• GitHub (👨‍💻 31 · 🔀 57 · 📋 460 - 13% open · ⏱️ 13.11.2023):

   git clone https://github.com/7mind/izumi
  

airframe (🥈21 · ⭐ 620) - Essential Building Blocks for Scala. Apache-2

• GitHub (👨‍💻 43 · 🔀 61 · 📋 590 - 16% open · ⏱️ 16.11.2023):

   git clone https://github.com/wvlet/airframe
  

macwire (🥈20 · ⭐ 1.2K) - Lightweight and Nonintrusive Scala Dependency Injection.. Apache-2

• GitHub (👨‍💻 41 · 🔀 75 · 📋 140 - 51% open · ⏱️ 23.10.2023):

   git clone https://github.com/softwaremill/macwire
  

scala-guice (🥉15 · ⭐ 340) - Scala extensions for Google Guice. Apache-2

• GitHub (👨‍💻 26 · 🔀 46 · 📋 61 - 19% open · ⏱️ 13.05.2023):

   git clone https://github.com/codingwell/scala-guice
  

scaldi (🥉15 · ⭐ 290 · 💤) - Lightweight Scala Dependency Injection Library. Apache-2

• GitHub (👨‍💻 13 · 🔀 24 · 📋 72 - 31% open · ⏱️ 08.06.2022):

   git clone https://github.com/scaldi/scaldi
  

jam (🥉8 · ⭐ 60) - Incredibly simple DI Scala library. MIT

• GitHub (👨‍💻 4 · 🔀 3 · ⏱️ 01.07.2023):

   git clone https://github.com/yakivy/jam
  

Show 2 hidden projects...

• subcut (🥉10 · ⭐ 400 · 💀) - Scala Uniquely Bound Classes Under Traits. ❗Unlicensed
• sclasner (🥉6 · ⭐ 10 · 💀) - Scala classpath scanner. MIT

HTTP

HTTP clients and servers

http4s (🥇27 · ⭐ 2.5K) - A minimal, idiomatic Scala interface for HTTP. Apache-2

• GitHub (👨‍💻 460 · 🔀 780 · 📋 1.5K - 21% open · ⏱️ 15.11.2023):

   git clone https://github.com/http4s/http4s
  

tapir (🥇27 · ⭐ 1.3K) - Declarative, type-safe web endpoints library. Apache-2

• GitHub (👨‍💻 270 · 🔀 370 · 📋 750 - 14% open · ⏱️ 13.11.2023):

   git clone https://github.com/softwaremill/tapir
  

sttp (🥈25 · ⭐ 1.4K) - The Scala HTTP client you always wanted!. Apache-2

• GitHub (👨‍💻 200 · 🔀 280 · 📋 410 - 13% open · ⏱️ 15.11.2023):

   git clone https://github.com/softwaremill/sttp
  

scalaxb (🥈23 · ⭐ 330) - scalaxb is an XML data binding tool for Scala. MIT

• GitHub (👨‍💻 68 · 🔀 150 · 📋 440 - 35% open · ⏱️ 12.10.2023):

   git clone https://github.com/eed3si9n/scalaxb
  

finch (🥈22 · ⭐ 1.6K) - Scala combinator library for building Finagle HTTP services. Apache-2

• GitHub (👨‍💻 130 · 🔀 230 · 📋 410 - 10% open · ⏱️ 12.11.2023):

   git clone https://github.com/finagle/finch
  

play-ws (🥈19 · ⭐ 220) - Standalone Play WS, an async HTTP client with fluent API. Apache-2

• GitHub (👨‍💻 49 · 🔀 86 · 📋 150 - 48% open · ⏱️ 09.11.2023):

   git clone https://github.com/playframework/play-ws
  

endpoints4s (🥉18 · ⭐ 400) - Describe HTTP endpoints in Scala and derive clients,.. MIT

• GitHub (👨‍💻 60 · 🔀 94 · 📋 200 - 18% open · ⏱️ 24.10.2023):

   git clone https://github.com/endpoints4s/endpoints4s
  

reboot (🥉17 · ⭐ 430) - Scala wrapper for the Java AsyncHttpClient. ❗️LGPL-3.0

• GitHub (👨‍💻 38 · 🔀 110 · 📋 100 - 4% open · ⏱️ 02.02.2023):

   git clone https://github.com/dispatch/reboot
  

pekko-http (🥉17 · ⭐ 120) - The Streaming-first HTTP server/module of Apache Pekko. Apache-2

• GitHub (👨‍💻 360 · 🔀 23 · 📋 67 - 26% open · ⏱️ 12.11.2023):

   git clone https://github.com/apache/incubator-pekko-http
  

lolhttp (🥉12 · ⭐ 93) - An HTTP Server and Client library for Scala. Apache-2

• GitHub (👨‍💻 20 · 🔀 18 · 📋 37 - 78% open · ⏱️ 17.07.2023):

   git clone https://github.com/criteo/lolhttp
  

Show 7 hidden projects...

• akka-http (🥈23 · ⭐ 1.3K) - The Streaming-first HTTP server/module of Akka. ❗Unlicensed
• scalaj-http (🥉15 · ⭐ 980 · 💀) - Simple scala wrapper for HttpURLConnection. OAuth included. Apache-2
• requests-scala (🥉13 · ⭐ 680 · 📉) - A Scala port of the popular Python Requests HTTP.. ❗Unlicensed
• fintrospect (🥉11 · ⭐ 91 · 💀) - Implement fast, type-safe HTTP webservices for Finagle. Apache-2
• roshttp (🥉10 · ⭐ 120 · 💀) - Unified Scala.js + Scala HTTP client API. MIT
• jefe (🥉7 · ⭐ 8 · 💀) - Manages installation, updating, downloading, launching, error reporting, and.. MIT
• frontier (🥉5 · ⭐ 9 · 💤) - Fast, efficient, pure-functional, effect-free websocket, http.. ❗Unlicensed

Testing

Libraries and frameworks for various types of code testing

gatling (🥇28 · ⭐ 6.1K · 📈) - Modern Load Testing as Code. Apache-2

• GitHub (👨‍💻 230 · 🔀 1.2K · 📦 23 · 📋 3.7K - 1% open · ⏱️ 14.11.2023):

   git clone https://github.com/gatling/gatling
  

scalatest (🥇23 · ⭐ 1.1K) - A testing tool for Scala and Java developers. Apache-2

• GitHub (👨‍💻 64 · 🔀 340 · 📋 840 - 60% open · ⏱️ 27.09.2023):

   git clone https://github.com/scalatest/scalatest
  

scalacheck (🥈22 · ⭐ 1.9K) - Property-based testing for Scala. BSD-3

• GitHub (👨‍💻 140 · 🔀 400 · 📋 350 - 17% open · ⏱️ 15.11.2023):

   git clone https://github.com/typelevel/scalacheck
  

spark-testing-base (🥈22 · ⭐ 1.5K) - Base classes to use when writing tests with Spark. Apache-2

• GitHub (👨‍💻 60 · 🔀 360 · 📦 35 · 📋 220 - 45% open · ⏱️ 14.10.2023):

   git clone https://github.com/holdenk/spark-testing-base
  

stryker4s (🥈21 · ⭐ 190) - Mutation testing for Scala. Apache-2

• GitHub (👨‍💻 31 · 🔀 35 · 📦 3 · 📋 160 - 20% open · ⏱️ 16.11.2023):

   git clone https://github.com/stryker-mutator/stryker4s
  

cornichon (🥈19 · ⭐ 220) - Testing tool in Scala for HTTP JSON API. Apache-2

• GitHub (👨‍💻 18 · 🔀 29 · 📋 160 - 13% open · ⏱️ 15.11.2023):

   git clone https://github.com/agourlay/cornichon
  

scalamock (🥉18 · ⭐ 490) - Native Scala mocking framework. MIT

• GitHub (👨‍💻 33 · 🔀 91 · 📋 220 - 10% open · ⏱️ 14.10.2023):

   git clone https://github.com/paulbutcher/scalamock
  

munit (🥉18 · ⭐ 390) - Scala testing library with actionable errors and extensible.. Apache-2

• GitHub (👨‍💻 46 · 🔀 75 · 📋 140 - 30% open · ⏱️ 23.10.2023):

   git clone https://github.com/scalameta/munit
  

mockito-scala (🥉18 · ⭐ 330) - Mockito for Scala language. MIT

• GitHub (👨‍💻 30 · 🔀 54 · 📋 120 - 20% open · ⏱️ 28.10.2023):

   git clone https://github.com/mockito/mockito-scala
  

testcontainers-scala (🥉15 · ⭐ 600) - Docker containers for testing in scala. MIT

• GitHub (👨‍💻 76 · 🔀 120 · 📋 100 - 30% open · ⏱️ 23.10.2023):

   git clone https://github.com/testcontainers/testcontainers-scala
  

scalaprops (🥉14 · ⭐ 280) - property based testing library for Scala. MIT

• GitHub (👨‍💻 12 · 🔀 21 · 📋 20 - 40% open · ⏱️ 16.11.2023):

   git clone https://github.com/scalaprops/scalaprops
  

Show 6 hidden projects...

• specs2 (🥈20 · ⭐ 730) - Software Specifications for Scala. ❗Unlicensed
• weaver-test (🥉16 · ⭐ 410) - A test framework that runs everything in parallel. ❗Unlicensed
• utest (🥉15 · ⭐ 480) - A simple testing framework for Scala. ❗Unlicensed
• minitest (🥉15 · ⭐ 180 · 💀) - The super light testing library for Scala and Scala.js. Apache-2
• scalameter (🥉14 · ⭐ 510 · 💤) - Microbenchmarking and performance regression testing.. ❗Unlicensed
• scalive (🥉11 · ⭐ 200 · 💀) - Connect a Scala REPL to running JVM processes without any prior setup. MIT

Security

Libraries for security, authentication, and cryptography

scala-oauth2-provider (🥇19 · ⭐ 530) - OAuth 2.0 server-side implementation written in Scala. MIT

• GitHub (👨‍💻 28 · 🔀 100 · 📋 67 - 5% open · ⏱️ 06.10.2023):

   git clone https://github.com/nulab/scala-oauth2-provider
  

akka-http-session (🥇17 · ⭐ 440) - Web & mobile client-side akka-http sessions, with.. Apache-2

• GitHub (👨‍💻 24 · 🔀 61 · 📋 44 - 27% open · ⏱️ 29.08.2023):

   git clone https://github.com/softwaremill/akka-http-session
  

play-pac4j (🥈16 · ⭐ 400) - Security library for Play framework 2 in Java and Scala: OAuth,.. Apache-2

• GitHub (👨‍💻 48 · 🔀 100 · ⏱️ 07.11.2023):

   git clone https://github.com/pac4j/play-pac4j
  

sttp-oauth2 (🥉14 · ⭐ 69) - OAuth2 client library implemented in Scala using sttp. Apache-2

• GitHub (👨‍💻 14 · 🔀 20 · 📋 43 - 53% open · ⏱️ 06.11.2023):

   git clone https://github.com/ocadotechnology/sttp-oauth2
  

• Maven (⏱️ 28.02.2023):

   <dependency>
   	<groupId>com.ocadotechnology</groupId>
   	<artifactId>sttp-oauth2_2.13</artifactId>
   	<version>[VERSION]</version>
   </dependency>
  

play-googleauth (🥉14 · ⭐ 32 · 📈) - Simple play module for authenticating against Google. Apache-2

• GitHub (👨‍💻 39 · 🔀 10 · ⏱️ 08.11.2023):

   git clone https://github.com/guardian/play-googleauth
  

jose (🥉10 · ⭐ 15) - Extensible JOSE library for Scala. Unlicense

• GitHub (👨‍💻 4 · 🔀 5 · 📋 13 - 69% open · ⏱️ 14.07.2023):

   git clone https://github.com/blackdoor/jose
  

Show 6 hidden projects...

• securesocial (🥇17 · ⭐ 1.2K · 💀) - A module that provides OAuth, OAuth2 and OpenID.. Apache-2
• play2-auth (🥈15 · ⭐ 620 · 💀) - Play2.x Authentication and Authorization module. Apache-2
• tsec (🥈15 · ⭐ 350 · 💀) - Type-safe general-cryptography library -.. MIT
• scrypto (🥉14 · ⭐ 200) - Cryptographic primitives for Scala. ❗️CC0-1.0
• aws-request-signer (🥉9 · ⭐ 21 · 💀) - Scala library to sign HTTP requests to AWS services. Apache-2
• OAuth2-mock-play (🥉7 · ⭐ 25 · 💀) - An implementation of an OAuth2 server designed for.. MIT

Data Handling

Libraries for data binding, validation, and serialization

scalapb (🥇27 · ⭐ 1.3K) - Protocol buffer compiler for Scala. Apache-2

• GitHub (👨‍💻 120 · 🔀 270 · 📥 430K · 📋 560 - 2% open · ⏱️ 11.11.2023):

   git clone https://github.com/scalapb/scalapb
  

scodec (🥇21 · ⭐ 800) - Scala combinator library for working with binary data. BSD-3

• GitHub (👨‍💻 62 · 🔀 110 · 📋 71 - 4% open · ⏱️ 25.10.2023):

   git clone https://github.com/scodec/scodec
  

scrooge (🥈20 · ⭐ 780) - A Thrift parser/generator. Apache-2

• GitHub (👨‍💻 230 · 🔀 260 · 📋 180 - 21% open · ⏱️ 02.11.2023):

   git clone https://github.com/twitter/scrooge
  

avro4s (🥈20 · ⭐ 710 · 📈) - Avro schema generation and serialization / deserialization.. Apache-2

• GitHub (👨‍💻 100 · 🔀 240 · 📋 380 - 3% open · ⏱️ 12.11.2023):

   git clone https://github.com/sksamuel/avro4s
  

upickle (🥈19 · ⭐ 680) - uPickle: a simple, fast, dependency-free JSON & Binary.. MIT

• GitHub (👨‍💻 52 · 🔀 150 · 📋 280 - 5% open · ⏱️ 16.09.2023):

   git clone https://github.com/com-lihaoyi/upickle
  

chill (🥈18 · ⭐ 600) - Scala extensions for the Kryo serialization library. Apache-2

• GitHub (👨‍💻 67 · 🔀 150 · 📋 150 - 37% open · ⏱️ 19.03.2023):

   git clone https://github.com/twitter/chill
  

proto (🥉11 · ⭐ 33) - Lightweight and fast serialization library for Scala 2/3 based on.. MIT

• GitHub (👨‍💻 7 · 🔀 3 · ⏱️ 10.10.2023):

   git clone https://github.com/zero-deps/proto
  

fields (🥉8 · ⭐ 44 · 💤) - Scala validation library. Apache-2

• GitHub (👨‍💻 1 · 🔀 4 · 📋 18 - 33% open · ⏱️ 09.08.2022):

   git clone https://github.com/jap-company/fields
  

dupin (🥉6 · ⭐ 42) - Minimal, idiomatic, customizable validation Scala library. MIT

• GitHub (👨‍💻 2 · 🔀 2 · ⏱️ 25.04.2023):

   git clone https://github.com/yakivy/dupin
  

Show 5 hidden projects...

• accord (🥉12 · ⭐ 530 · 💤) - Accord: A sane validation library for Scala. ❗Unlicensed
• octopus (🥉11 · ⭐ 150 · 💀) - Scala library for boilerplate-free validation. Apache-2
• msgpack-scala (🥉7 · ⭐ 94 · 💀) - MessagePack serializer implementation for Scala /.. ❗Unlicensed
• avro-codegen (🥉7 · ⭐ 9 · 💀) - Scala code generator for Avro schemas. ❗Unlicensed
• veto (🥉4 · ⭐ 6 · 💀) - If you dont agree with the data. Apache-2

Parsers

Libraries for creating custom parsers

cats-parse (🥇18 · ⭐ 220) - A parsing library for the cats ecosystem. MIT

• GitHub (👨‍💻 36 · 🔀 48 · 📋 92 - 25% open · ⏱️ 13.11.2023):

   git clone https://github.com/typelevel/cats-parse
  

fastparse (🥈17 · ⭐ 1.1K) - Writing Fast Parsers Fast in Scala. MIT

• GitHub (👨‍💻 52 · 🔀 170 · 📋 140 - 13% open · ⏱️ 10.07.2023):

   git clone https://github.com/com-lihaoyi/fastparse
  

scala-parser-combinators (🥈17 · ⭐ 630) - simple combinator-based parsing for Scala. formerly.. Apache-2

• GitHub (👨‍💻 70 · 🔀 130 · 📋 120 - 18% open · ⏱️ 17.10.2023):

   git clone https://github.com/scala/scala-parser-combinators
  

atto (🥉15 · ⭐ 360 · 💤) - friendly little parsers. MIT

• GitHub (👨‍💻 31 · 🔀 59 · 📋 30 - 63% open · ⏱️ 07.07.2022):

   git clone https://github.com/tpolecat/atto
  

scallion (🥉9 · ⭐ 51 · 💤) - LL(1) parser combinators in Scala. Apache-2

• GitHub (👨‍💻 8 · 🔀 15 · 📥 420 · 📋 5 - 60% open · ⏱️ 03.10.2022):

   git clone https://github.com/epfl-lara/scallion
  

Show 1 hidden projects...

• parboiled2 (🥉14 · ⭐ 710) - A macro-based PEG parser generator for Scala 2.10+. ❗Unlicensed

Reactive Programming

Reactive programming libraries (streams, observables...)

monix (🥇21 · ⭐ 1.9K) - Asynchronous, Reactive Programming for Scala and Scala.js. Apache-2

• GitHub (👨‍💻 100 · 🔀 240 · 📋 660 - 12% open · ⏱️ 17.10.2023):

   git clone https://github.com/monix/monix
  

rescala (🥈14 · ⭐ 81 · 📉) - REScala - distributed and reactive programming embedded.. Apache-2

• GitHub (👨‍💻 28 · 🔀 28 · ⏱️ 11.11.2023):

   git clone https://github.com/rescala-lang/rescala
  

Show 9 hidden projects...

• fs2 (🥇24 · ⭐ 2.3K · 📉) - Compositional, streaming I/O library for Scala. ❗Unlicensed
• rxscala (🥈16 · ⭐ 890 · 💀) - RxScala Reactive Extensions for Scala a library for composing.. Apache-2
• iteratee (🥈15 · ⭐ 190 · 💀) - Iteratees for Cats. Apache-2
• reactor-scala-extensions (🥉13 · ⭐ 52 · 💀) - A scala extension for Project Reactors Flux and Mono. Apache-2
• scala.rx (🥉12 · ⭐ 980 · 💀) - An experimental library for Functional Reactive.. ❗Unlicensed
• vertx-lang-scala (🥉11 · ⭐ 120) - Vert.x for Scala. ❗Unlicensed
• wire-signals (🥉10 · ⭐ 23 · 💀) - A small and effective event-handling library for Scala. ❗️GPL-3.0
• synapsegrid (🥉8 · ⭐ 120 · 💀) - SynapseGrid is a framework for constructing dynamic low.. ❗Unlicensed
• reactors (🥉8 · ⭐ 4 · 💀) - A concurrent reactive programming framework. BSD-3

Development Environment

Various tooling libraries that help with the overall Scala programming environment

dregex (🥇14 · ⭐ 40) - dregex is a Java library that implements a regular expression engine using.. BSD-2

• GitHub (👨‍💻 6 · 🔀 4 · 📋 5 - 40% open · ⏱️ 09.11.2023):

   git clone https://github.com/marianobarrios/dregex
  

fastring (🥈12 · ⭐ 120) - Extremely fast string formatting. Apache-2

• GitHub (👨‍💻 7 · 🔀 9 · 📋 7 - 42% open · ⏱️ 15.07.2023):

   git clone https://github.com/atry/fastring
  

fast-string-interpolator (🥈12 · ⭐ 86) - Scala macro that generates ultra-fast string.. Apache-2

• GitHub (👨‍💻 7 · 🔀 6 · 📋 7 - 28% open · ⏱️ 13.09.2023):

   git clone https://github.com/plokhotnyuk/fast-string-interpolator
  

Show 6 hidden projects...

• scalatex (🥈10 · ⭐ 290 · 💀) - Programmable, Typesafe Document Generation. ❗Unlicensed
• scala-trace-debug (🥉9 · ⭐ 120 · 💀) - Macro based print debugging. Locates log statements in.. MIT
• scala2plantuml (🥉9 · ⭐ 22 · 💀) - Scala2PlantUML generates PlantUML diagrams from Scala code. MIT
• pos (🥉8 · ⭐ 23 · 💀) - Macro based print debugging for Scala code. Locates debug statements in.. Apache-2
• stone (🥉7 · ⭐ 4 · 💀) - URL (de)construct. Withers. Apache-2
• scalajs-router (🥉4 · ⭐ 4 · 💀) - ScalaJS frontend router. Apache-2

Templating Engines

twirl (🥇21 · ⭐ 530) - Twirl is Plays default template engine. Apache-2

• GitHub (👨‍💻 53 · 🔀 110 · 📋 110 - 32% open · ⏱️ 16.11.2023):

   git clone https://github.com/playframework/twirl
  

scalate (🥈17 · ⭐ 600) - Scalate is a Scala based template engine which supports HAML,.. Apache-2

• GitHub (👨‍💻 73 · 🔀 100 · 📋 64 - 48% open · ⏱️ 16.11.2023):

   git clone https://github.com/scalate/scalate
  

scalatags (🥉14 · ⭐ 730) - ScalaTags is a small XML/HTML construction library for Scala. MIT

• GitHub (👨‍💻 61 · 🔀 120 · 📋 140 - 22% open · ⏱️ 26.10.2023):

   git clone https://github.com/com-lihaoyi/scalatags
  

hepek (🥉11 · ⭐ 95) - Typesafe HTML templates and static site generator in pure Scala. Apache-2

• GitHub (👨‍💻 6 · 🔀 9 · 📋 24 - 29% open · ⏱️ 06.11.2023):

   git clone https://github.com/sake92/hepek
  

Show 1 hidden projects...

• beard (🥉10 · ⭐ 120) - A lightweight, logicless templating engine, written in Scala and.. ❗Unlicensed

Business Intelligence

Libraries for data analysis, machine learning, and AI

bigdl (🥇32 · ⭐ 4.5K) - Accelerate LLM with low-bit (FP4 / INT4 / FP8 / INT8) optimizations.. Apache-2

• GitHub (👨‍💻 190 · 🔀 1.2K · 📥 20 · 📦 46 · 📋 2.2K - 40% open · ⏱️ 16.11.2023):

   git clone https://github.com/intel-analytics/bigdl
  

spark-nlp (🥇29 · ⭐ 3.5K) - State of the Art Natural Language Processing. Apache-2

• GitHub (👨‍💻 110 · 🔀 670 · 📦 360 · 📋 830 - 4% open · ⏱️ 14.11.2023):

   git clone https://github.com/johnsnowlabs/spark-nlp
  

Snowplow (🥇27 · ⭐ 6.6K) - The enterprise-grade behavioral data engine (web, mobile, server-.. Apache-2

• GitHub (👨‍💻 100 · 🔀 1.2K · 📥 5.4K · 📦 21 · 📋 4K - 1% open · ⏱️ 16.11.2023):

   git clone https://github.com/snowplow/snowplow
  

algebird (🥈24 · ⭐ 2.3K) - Abstract Algebra for Scala. Apache-2

• GitHub (👨‍💻 110 · 🔀 350 · 📋 260 - 36% open · ⏱️ 12.11.2023):

   git clone https://github.com/twitter/algebird
  

zeppelin (🥈23 · ⭐ 6.2K) - Web-based notebook that enables data-driven, interactive data.. Apache-2

• GitHub (👨‍💻 530 · 🔀 2.8K · 📦 21 · ⏱️ 15.11.2023):

   git clone https://github.com/apache/zeppelin
  

spire (🥈21 · ⭐ 1.7K) - Powerful new number types and numeric abstractions for Scala. MIT

• GitHub (👨‍💻 100 · 🔀 250 · 📋 400 - 32% open · ⏱️ 15.11.2023):

   git clone https://github.com/typelevel/spire
  

breeze (🥈19 · ⭐ 3.4K · 💤) - Breeze is a numerical processing library for Scala. Apache-2

• GitHub (👨‍💻 140 · 🔀 700 · 📋 540 - 16% open · ⏱️ 22.08.2022):

   git clone https://github.com/scalanlp/breeze
  

openmole (🥈18 · ⭐ 140) - Workflow engine for exploration of simulation models using high.. ❗️AGPL-3.0

• GitHub (👨‍💻 48 · 🔀 34 · 📥 56 · 📋 450 - 18% open · ⏱️ 15.11.2023):

   git clone https://github.com/openmole/openmole
  

squants (🥈17 · ⭐ 910 · 💤) - The Scala API for Quantities, Units of Measure and.. Apache-2

• GitHub (👨‍💻 60 · 🔀 110 · 📋 140 - 29% open · ⏱️ 13.12.2022):

   git clone https://github.com/typelevel/squants
  

tensorflow_scala (🥉16 · ⭐ 930 · 💤) - TensorFlow API for the Scala Programming Language. Apache-2

• GitHub (👨‍💻 12 · 🔀 99 · 📋 150 - 19% open · ⏱️ 22.06.2022):

   git clone https://github.com/eaplatanios/tensorflow_scala
  

openai-scala-client (🥉16 · ⭐ 130) - Scala client for OpenAI API. MIT

• GitHub (👨‍💻 4 · 🔀 11 · 📋 30 - 30% open · ⏱️ 16.11.2023):

   git clone https://github.com/cequence-io/openai-scala-client
  

• Maven (📦 2 · ⏱️ 01.10.2023):

   <dependency>
   	<groupId>io.cequence</groupId>
   	<artifactId>openai-scala-client_2.13</artifactId>
   	<version>[VERSION]</version>
   </dependency>
  

onnx-scala (🥉13 · ⭐ 130) - An ONNX (Open Neural Network eXchange) API and.. ❗️AGPL-3.0

• GitHub (👨‍💻 4 · 🔀 10 · 📋 10 - 20% open · ⏱️ 07.11.2023):

   git clone https://github.com/emergentorder/onnx-scala
  

optimus (🥉12 · ⭐ 140 · 💤) - Optimus is a mathematical programming library for Scala. ❗️LGPL-3.0

• GitHub (👨‍💻 9 · 🔀 26 · 📥 1.8K · ⏱️ 27.08.2022):

   git clone https://github.com/vagmcs/optimus
  

numsca (🥉11 · ⭐ 180 · 💤) - numsca is numpy for scala. BSD-2

• GitHub (🔀 16 · 📋 10 - 30% open · ⏱️ 30.01.2023):

   git clone https://github.com/botkop/numsca
  

ndscala (🥉6 · ⭐ 47 · 💤) - N-dimensional / multi-dimensional arrays (tensors) in Scala 3... ❗️AGPL-3.0

• GitHub (👨‍💻 3 · 🔀 5 · ⏱️ 22.12.2022):

   git clone https://github.com/sciscala/ndscala
  

Show 12 hidden projects...

• smile (🥈25 · ⭐ 5.8K) - Statistical Machine Intelligence & Learning Engine. ❗Unlicensed
• spark-notebook (🥈21 · ⭐ 3.1K · 💀) - Interactive and Reactive Data Science using Scala and.. Apache-2
• figaro (🥉16 · ⭐ 760 · 💤) - Figaro Programming Language and Core Libraries. ❗Unlicensed
• doddle-model (🥉13 · ⭐ 140 · 💀) - doddle-model: machine learning in Scala. Apache-2
• libra (🥉10 · ⭐ 200 · 💀) - A dimensional analysis library based on dependent types. ❗Unlicensed
• clustering4ever (🥉10 · ⭐ 130 · 💀) - C4E, a JVM friendly library written in Scala for both.. Apache-2
• lomrf (🥉9 · ⭐ 80 · 💀) - LoMRF is an open-source implementation of Markov Logic Networks. Apache-2
• rings (🥉9 · ⭐ 69) - Rings: efficient JVM library for polynomial rings. ❗Unlicensed
• axle (🥉9 · ⭐ 67) - Axle Domain Specific Language for Scientific Cloud Computing and.. ❗Unlicensed
• vecmatlib (🥉9 · ⭐ 3) - Open source Scala library that provides data structures for vectors.. Apache-2
• mgo (🥉7 · ⭐ 72) - Purely functional genetic algorithms for multi-objective.. ❗Unlicensed
• synapses (🥉7 · ⭐ 68 · 💀) - A group of neural-network libraries for functional and mainstream.. MIT

Big Data

Libraries for processing and handling big data sets

spark (🥇29 · ⭐ 37K) - Apache Spark - A unified analytics engine for large-scale data processing. Apache-2

• GitHub (👨‍💻 3K · 🔀 28K · ⏱️ 16.11.2023):

   git clone https://github.com/apache/spark
  

flink (🥇29 · ⭐ 22K) - Apache Flink. Apache-2

• GitHub (👨‍💻 1.8K · 🔀 12K · 📦 21 · ⏱️ 16.11.2023):

   git clone https://github.com/apache/flink
  

scio (🥈27 · ⭐ 2.5K) - A Scala API for Apache Beam and Google Cloud Dataflow. Apache-2

• GitHub (👨‍💻 210 · 🔀 510 · 📥 11K · 📋 1.3K - 11% open · ⏱️ 16.11.2023):

   git clone https://github.com/spotify/scio
  

nussknacker (🥈23 · ⭐ 520) - Low-code tool for automating actions on real time data | Stream.. Apache-2

• GitHub (👨‍💻 73 · 🔀 89 · 📥 320 · 📋 450 - 16% open · ⏱️ 15.11.2023):

   git clone https://github.com/touk/nussknacker
  

scalding (🥈22 · ⭐ 3.5K) - A Scala API for Cascading. Apache-2

• GitHub (👨‍💻 210 · 🔀 700 · 📋 650 - 49% open · ⏱️ 28.05.2023):

   git clone https://github.com/twitter/scalding
  

gallia-core (🥉13 · ⭐ 79) - A schema-aware Scala library for data transformation. Apache-2

• GitHub (👨‍💻 1 · 🔀 4 · ⏱️ 10.10.2023):

   git clone https://github.com/galliaproject/gallia-core
  

gridscale (🥉10 · ⭐ 26) - Scala library for accessing various file, batch systems, job.. ❗️AGPL-3.0

• GitHub (👨‍💻 5 · 🔀 8 · 📋 13 - 38% open · ⏱️ 30.10.2023):

   git clone https://github.com/openmole/gridscale
  

Show 7 hidden projects...

• alpakka-kafka (🥈21 · ⭐ 1.4K) - Alpakka Kafka connector - Alpakka is a Reactive.. ❗Unlicensed
• summingbird (🥉20 · ⭐ 2.1K · 💀) - Streaming MapReduce with Scalding and Storm. Apache-2
• sparta (🥉19 · ⭐ 530 · 💀) - Real Time Analytics and Data Pipelines based on Spark Streaming. Apache-2
• bidmach (🥉18 · ⭐ 910 · 💀) - CPU and GPU-accelerated Machine Learning Library. BSD-3
• vegas (🥉15 · ⭐ 730 · 💀) - The missing MatPlotLib for Scala + Spark. MIT
• schemer (🥉9 · ⭐ 110 · 💀) - Schema registry for CSV, TSV, JSON, AVRO and Parquet schema... Apache-2
• sparkplug (🥉9 · ⭐ 28 · 💀) - Spark package to plug holes in data using SQL based rules. Apache-2

Distributed

Libraries and frameworks for building and maintaining distributed systems and fault-tolerant applications.

kafka (🥇29 · ⭐ 26K) - Mirror of Apache Kafka. Apache-2

• GitHub (👨‍💻 1.3K · 🔀 13K · 📦 25 · ⏱️ 16.11.2023):

   git clone https://github.com/apache/kafka
  

finagle (🥇29 · ⭐ 8.7K) - A fault tolerant, protocol-agnostic RPC system. Apache-2

• GitHub (👨‍💻 520 · 🔀 1.5K · 📦 21 · 📋 410 - 14% open · ⏱️ 05.11.2023):

   git clone https://github.com/twitter/finagle
  

lagom (🥈22 · ⭐ 2.6K · 📈) - Reactive Microservices for the JVM. Apache-2

• GitHub (👨‍💻 150 · 🔀 630 · 📋 1.1K - 41% open · ⏱️ 14.08.2023):

   git clone https://github.com/lagom/lagom
  

pekko (🥈20 · ⭐ 780) - Build highly concurrent, distributed, and resilient message-driven.. Apache-2

• GitHub (👨‍💻 1.1K · 🔀 79 · 📋 190 - 35% open · ⏱️ 15.11.2023):

   git clone https://github.com/apache/incubator-pekko
  

parapet (🥉11 · ⭐ 140) - A purely functional library to build distributed and event-driven.. Apache-2

• GitHub (👨‍💻 5 · 🔀 7 · 📋 26 - 30% open · ⏱️ 30.04.2023):

   git clone https://github.com/parapet-io/parapet
  

poppet (🥉9 · ⭐ 25) - Minimal, type-safe RPC Scala library. MIT

• GitHub (👨‍💻 2 · 🔀 2 · ⏱️ 13.09.2023):

   git clone https://github.com/yakivy/poppet
  

annette (🥉9 · ⭐ 15) - Platform to build distributed, scalable, enterprise-wide business.. Apache-2

• GitHub (⏱️ 18.07.2023):

   git clone https://github.com/annetteplatform/annette
  

Show 4 hidden projects...

• akka (🥇30 · ⭐ 13K) - Build highly concurrent, distributed, and resilient message-.. ❗Unlicensed
• curiodb (🥉11 · ⭐ 510 · 💀) - Distributed NoSQL Database. BSD-2
• akka-tracing (🥉11 · ⭐ 320 · 💀) - A distributed tracing extension for Akka. Provides.. ❗Unlicensed
• glokka (🥉9 · ⭐ 56 · 💀) - Library to register and lookup actors by names in an Akka cluster. MIT

ScalaJS

Libraries purely built for Scala.js

scala-js (🥇25 · ⭐ 4.5K) - Scala.js, the Scala to JavaScript compiler. Apache-2

• GitHub (👨‍💻 100 · 🔀 390 · 📋 2.2K - 1% open · ⏱️ 03.11.2023):

   git clone https://github.com/scala-js/scala-js
  

scalajs-react (🥈21 · ⭐ 1.6K) - Facebooks React on Scala.JS. Apache-2

• GitHub (👨‍💻 81 · 🔀 240 · 📋 530 - 4% open · ⏱️ 24.07.2023):

   git clone https://github.com/japgolly/scalajs-react
  

Laminar (🥉14 · ⭐ 670) - Simple, expressive, and safe UI library for Scala.js. MIT

• GitHub (👨‍💻 13 · 🔀 43 · 📋 93 - 19% open · ⏱️ 02.11.2023):

   git clone https://github.com/raquo/Laminar
  

Show 4 hidden projects...

• scala-js-dom (🥈19 · ⭐ 300) - Statically typed DOM API for Scala.js. ❗Unlicensed
• scalajs-angular (🥉14 · ⭐ 260 · 💀) - AngularJS Binding for Scala.js. Apache-2
• scalajs-bundler (🥉14 · ⭐ 230) - ❗Unlicensed
• nodejs (🥉14 · ⭐ 160 · 💀) - This project provides Scala.js type-safe bindings for Node.js.. Apache-2

Logging

Libraries for working with and generating logs.

tinylog (🥇25 · ⭐ 630) - tinylog is a lightweight logging framework for Java, Kotlin, Scala,.. Apache-2

• GitHub (👨‍💻 19 · 🔀 74 · 📥 29K · 📦 1.2K · 📋 230 - 8% open · ⏱️ 15.11.2023):

   git clone https://github.com/tinylog-org/tinylog
  

scala-logging (🥈18 · ⭐ 900) - Convenient and performant logging library for Scala.. Apache-2

• GitHub (👨‍💻 45 · 🔀 130 · 📋 120 - 20% open · ⏱️ 08.11.2023):

   git clone https://github.com/lightbend-labs/scala-logging
  

Show 2 hidden projects...

• log4s (🥉12 · ⭐ 170 · 💤) - High-performance SLF4J wrapper for Scala. ❗Unlicensed
• blindsight (🥉9 · ⭐ 81) - Blindsight is a Scala logging API with DSL based.. ❗Unlicensed

Others

eclair (🥇25 · ⭐ 1.2K) - A scala implementation of the Lightning Network. Apache-2

• GitHub (👨‍💻 48 · 🔀 250 · 📥 44K · 📋 720 - 6% open · ⏱️ 14.11.2023):

   git clone https://github.com/acinq/eclair
  

sangria (🥇24 · ⭐ 2K) - Scala GraphQL implementation. Apache-2

• GitHub (👨‍💻 65 · 🔀 220 · 📋 460 - 12% open · ⏱️ 09.11.2023):

   git clone https://github.com/sangria-graphql/sangria
  

bootzooka (🥇21 · ⭐ 710) - Simple project to quickly start developing a Scala-based.. Apache-2

• GitHub (👨‍💻 63 · 🔀 150 · 📋 110 - 10% open · ⏱️ 15.11.2023):

   git clone https://github.com/softwaremill/bootzooka
  

pureconfig (🥇20 · ⭐ 1.4K) - A boilerplate-free library for loading configuration files. MPL-2.0

• GitHub (👨‍💻 86 · 🔀 170 · 📋 290 - 15% open · ⏱️ 15.11.2023):

   git clone https://github.com/pureconfig/pureconfig
  

play-swagger (🥇19 · ⭐ 400) - Swagger spec generator for play framework. Apache-2

• GitHub (👨‍💻 54 · 🔀 130 · 📋 250 - 35% open · ⏱️ 28.07.2023):

   git clone https://github.com/iheartradio/play-swagger
  

fs2-aws (🥇19 · ⭐ 180) - fs2 utilities to interact with AWS. MIT

• GitHub (👨‍💻 28 · 🔀 42 · 📋 70 - 38% open · ⏱️ 13.11.2023):

   git clone https://github.com/laserdisc-io/fs2-aws
  

scallop (🥈18 · ⭐ 660) - a simple Scala CLI parsing library. MIT

• GitHub (👨‍💻 25 · 🔀 58 · 📋 190 - 3% open · ⏱️ 05.11.2023):

   git clone https://github.com/scallop/scallop
  

metrics-scala (🥈18 · ⭐ 430) - The scala API for Dropwizards Metrics. Apache-2

• GitHub (👨‍💻 90 · 🔀 61 · 📋 74 - 2% open · ⏱️ 08.11.2023):

   git clone https://github.com/erikvanoosten/metrics-scala
  

scala-scraper (🥈17 · ⭐ 700) - A Scala library for scraping content from HTML pages. MIT

• GitHub (👨‍💻 15 · 🔀 100 · 📋 61 - 13% open · ⏱️ 14.11.2023):

   git clone https://github.com/ruippeixotog/scala-scraper
  

skuber (🥈17 · ⭐ 71) - A Scala Kubernetes client library. Apache-2

• GitHub (👨‍💻 64 · 🔀 47 · 📋 42 - 47% open · ⏱️ 13.11.2023):

   git clone https://github.com/hagay3/skuber
  

decline (🥈16 · ⭐ 610) - A composable command-line parser for Scala. Apache-2

• GitHub (👨‍💻 34 · 🔀 64 · 📋 86 - 31% open · ⏱️ 11.06.2023):

   git clone https://github.com/bkirwi/decline
  

cilib (🥈16 · ⭐ 120 · 💤) - Typesafe, purely functional Computational Intelligence. Apache-2

• GitHub (👨‍💻 26 · 🔀 100 · 📋 65 - 16% open · ⏱️ 05.08.2022):

   git clone https://github.com/ciren/cilib
  

pprint (🥈15 · ⭐ 210) - Pretty-printing value, types and type-signatures in Scala. MIT

• GitHub (👨‍💻 18 · 🔀 35 · 📋 36 - 38% open · ⏱️ 07.06.2023):

   git clone https://github.com/com-lihaoyi/pprint
  

stac4s (🥈14 · ⭐ 15) - a scala library with primitives to build applications using the.. Apache-2

• GitHub (👨‍💻 15 · 🔀 9 · 📋 51 - 39% open · ⏱️ 26.10.2023):

   git clone https://github.com/stac-utils/stac4s
  

rtree2d (🥈13 · ⭐ 130) - RTree2D is a 2D immutable R-tree for ultra-fast nearest and.. Apache-2

• GitHub (👨‍💻 6 · 🔀 11 · 📋 18 - 44% open · ⏱️ 30.10.2023):

   git clone https://github.com/plokhotnyuk/rtree2d
  

franklin (🥈13 · ⭐ 71) - A STAC/OGC API Features Web Service. Apache-2

• GitHub (👨‍💻 12 · 🔀 18 · 📋 200 - 48% open · ⏱️ 15.11.2023):

   git clone https://github.com/azavea/franklin
  

osm4scala (🥉12 · ⭐ 77 · 💤) - Scala and Spark library focused on reading OpenStreetMap Pbf files. MIT

• GitHub (👨‍💻 4 · 🔀 16 · 📥 42 · 📋 72 - 34% open · ⏱️ 08.09.2022):

   git clone https://github.com/simplexspatial/osm4scala
  

scountries (🥉10 · ⭐ 20) - Scala library that provides an enumeration of ISO 3166 codes.. Apache-2

• GitHub (👨‍💻 5 · 🔀 1 · ⏱️ 26.10.2023):

   git clone https://github.com/lambdaworks/scountries
  

• Maven (⏱️ 24.04.2023):

   <dependency>
   	<groupId>io.lambdaworks</groupId>
   	<artifactId>scountries_3</artifactId>
   	<version>[VERSION]</version>
   </dependency>
  

scurl-detector (🥉10 · ⭐ 17) - Scala library that detects and extracts URLs from text. Apache-2

• GitHub (👨‍💻 7 · 🔀 2 · 📋 10 - 10% open · ⏱️ 11.11.2023):

   git clone https://github.com/lambdaworks/scurl-detector
  

• Maven (⏱️ 24.04.2023):

   <dependency>
   	<groupId>io.lambdaworks</groupId>
   	<artifactId>scurl-detector_3</artifactId>
   	<version>[VERSION]</version>
   </dependency>
  

mailgun4s (🥉9 · ⭐ 17) - Mailgun API implementation in Scala. MIT

• GitHub (👨‍💻 6 · 🔀 7 · ⏱️ 15.11.2023):

   git clone https://github.com/outr/mailgun4s
  

figlet4s (🥉8 · ⭐ 38 · 💤) - ASCII-art banners in Scala. MIT

• GitHub (👨‍💻 1 · 📋 21 - 57% open · ⏱️ 08.11.2022):

   git clone https://github.com/colofabrix/figlet4s
  

spliff (🥉7 · ⭐ 49 · 💤) - Efficient diffing in Scala. MPL-2.0

• GitHub (👨‍💻 2 · 🔀 1 · ⏱️ 17.05.2022):

   git clone https://github.com/sirthias/spliff
  

Show 29 hidden projects...

• geotrellis (🥇19 · ⭐ 1.3K) - GeoTrellis is a geographic data processing engine for high.. ❗Unlicensed
• scopt (🥈16 · ⭐ 1.4K) - command line options parsing for Scala. ❗Unlicensed
• scalafx (🥈15 · ⭐ 640) - ScalaFX simplifies creation of JavaFX-based user interfaces.. ❗Unlicensed
• sbt-android (🥈14 · ⭐ 740 · 💀) - An easy-to-use sbt plugin for working with all Android.. ❗Unlicensed
• scaloid (🥈13 · ⭐ 2.1K · 💀) - Scaloid makes your Android code easy to understand and.. ❗Unlicensed
• akka-quartz-scheduler (🥈13 · ⭐ 560 · 💤) - Quartz Extension and utilities for cron-style.. ❗Unlicensed
• banana-rdf (🥈13 · ⭐ 290 · 💀) - Banana RDF. ❗Unlicensed
• op-rabbit (🥈13 · ⭐ 240 · 💀) - The Opinionated RabbitMQ Library for Scala and Akka. ❗Unlicensed
• fansi (🥈13 · ⭐ 220) - Scala/Scala.js library for manipulating Fancy Ansi colored.. ❗Unlicensed
• scala-stm (🥉12 · ⭐ 250 · 💀) - A library-based Software Transactional Memory (STM) for Scala,.. BSD-3
• scala-ssh (🥉12 · ⭐ 230 · 💀) - Remote shell access via SSH for your Scala applications. Apache-2
• mainargs (🥉12 · ⭐ 170) - A small, convenient, dependency-free library for.. ❗Unlicensed
• scowl (🥉12 · ⭐ 55 · 💀) - A Scala DSL for programming with the OWL API. MIT
• scalafiddle-editor (🥉11 · ⭐ 99 · 💀) - Web user interface for ScalaFiddle. Apache-2
• managerial (🥉11 · ⭐ 13) - A zero-dependency Scala library for managing resources.. Apache-2
• replesent (🥉10 · ⭐ 400 · 💀) - A neat little tool to build presentations using the Scala REPL. Apache-2
• miniboxing-plugin (🥉10 · ⭐ 120 · 💀) - Miniboxing is a program transformation that improves.. ❗Unlicensed
• aptus-core (🥉10 · ⭐ 5) - A utility library aiming to simplify the Scala coding.. Apache-2
• clist (🥉8 · ⭐ 110 · 💀) - Command Line Interface Scala Toolkit. Apache-2
• xs4s (🥉8 · ⭐ 57 · 💀) - XML Streaming for Scala including FS2/cats support. ❗Unlicensed
• ostinato (🥉8 · ⭐ 50 · 💀) - A chess library that runs on the server (Scala) and on the browser.. MIT
• scaposer (🥉8 · ⭐ 38 · 💀) - GNU Gettext .po file loader for Scala. MIT
• scala-xgettext (🥉8 · ⭐ 25 · 💀) - Scala compiler plugin that acts like GNU xgettext command to.. MIT
• aws4s (🥉7 · ⭐ 88 · 💀) - Non-blocking AWS SDK for Scala exposing strongly-typed APIs built on top.. MIT
• sfcurve (🥉7 · ⭐ 80 · 💤) - LocationTech SFCurve is a Scala library for the creation,.. ❗Unlicensed
• google-api-scala (🥉7 · ⭐ 18 · 💀) - This API is a wrapper for the google java libraries... Apache-2
• service-chassis (🥉5 · ⭐ 7 · 💤) - A scala chassis to get your applications and services.. ❗Unlicensed
• sevenz4s (🥉4 · ⭐ 43 · 💀) - SevenZip library for Scala, easy to use. ❗️LGPL-2.1
• google4s (🥉3 · ⭐ 11 · 💀) - A lean, functional library for Google Cloud Services in Scala. ❗Unlicensed

---

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