for install extract CTK.zip any where you want and add in Path of System Environment
next open your cmd and type CTK and hit enter
features
───| Clear
───| Copy
───| Help
───| Network
|-------- DNSLookUp
|-------- Ping
|-------- Port
|-------- ReverseLookUp
|-------- Mac
|-------- LocalIP
|-------- Adapters
───| Encode
|------- Base64
|------- Base32
|------- HTML
|------- URL
───| Decode
|------- Base64
|------- Base32
|------- HTML
|------- URL
───| Hash
|----- MD5
|----- SHA1
|----- SHA256
|----- SHA384
|----- SHA512