diff --git a/crates/fj-viewer/src/graphics/draw_config.rs b/crates/fj-viewer/src/graphics/draw_config.rs
index ef54108f7..bed33832d 100644
--- a/crates/fj-viewer/src/graphics/draw_config.rs
+++ b/crates/fj-viewer/src/graphics/draw_config.rs
@@ -6,9 +6,6 @@ pub struct DrawConfig {
 
     /// Toggle for displaying the wireframe model
     pub draw_mesh: bool,
-
-    /// Toggle for displaying model debug information
-    pub draw_debug: bool,
 }
 
 impl Default for DrawConfig {
@@ -16,7 +13,6 @@ impl Default for DrawConfig {
         Self {
             draw_model: true,
             draw_mesh: false,
-            draw_debug: false,
         }
     }
 }
diff --git a/crates/fj-viewer/src/graphics/drawables.rs b/crates/fj-viewer/src/graphics/drawables.rs
index b553dea62..4c46f955d 100644
--- a/crates/fj-viewer/src/graphics/drawables.rs
+++ b/crates/fj-viewer/src/graphics/drawables.rs
@@ -6,16 +6,14 @@ use super::{
 pub struct Drawables<'r> {
     pub model: Drawable<'r>,
     pub mesh: Drawable<'r>,
-    pub lines: Drawable<'r>,
 }
 
 impl<'r> Drawables<'r> {
     pub fn new(geometries: &'r Geometries, pipelines: &'r Pipelines) -> Self {
         let model = Drawable::new(&geometries.mesh, &pipelines.model);
         let mesh = Drawable::new(&geometries.mesh, &pipelines.mesh);
-        let lines = Drawable::new(&geometries.lines, &pipelines.lines);
 
-        Self { model, mesh, lines }
+        Self { model, mesh }
     }
 }
 
diff --git a/crates/fj-viewer/src/graphics/geometries.rs b/crates/fj-viewer/src/graphics/geometries.rs
index 1fb3b4578..e7d040fd1 100644
--- a/crates/fj-viewer/src/graphics/geometries.rs
+++ b/crates/fj-viewer/src/graphics/geometries.rs
@@ -7,20 +7,13 @@ use super::vertices::{Vertex, Vertices};
 #[derive(Debug)]
 pub struct Geometries {
     pub mesh: Geometry,
-    pub lines: Geometry,
 }
 
 impl Geometries {
-    pub fn new(
-        device: &wgpu::Device,
-        mesh: &Vertices,
-        debug_info: &Vertices,
-    ) -> Self {
+    pub fn new(device: &wgpu::Device, mesh: &Vertices) -> Self {
         let mesh = Geometry::new(device, mesh.vertices(), mesh.indices());
-        let lines =
-            Geometry::new(device, debug_info.vertices(), debug_info.indices());
 
-        Self { mesh, lines }
+        Self { mesh }
     }
 }
 
diff --git a/crates/fj-viewer/src/graphics/renderer.rs b/crates/fj-viewer/src/graphics/renderer.rs
index f9c5c8fb7..20f32a670 100644
--- a/crates/fj-viewer/src/graphics/renderer.rs
+++ b/crates/fj-viewer/src/graphics/renderer.rs
@@ -184,8 +184,7 @@ impl Renderer {
             label: None,
         });
 
-        let geometries =
-            Geometries::new(&device, &Vertices::empty(), &Vertices::empty());
+        let geometries = Geometries::new(&device, &Vertices::empty());
         let pipelines =
             Pipelines::new(&device, &bind_group_layout, color_format);
 
@@ -213,8 +212,8 @@ impl Renderer {
     }
 
     /// Updates the geometry of the model being rendered.
-    pub fn update_geometry(&mut self, mesh: Vertices, lines: Vertices) {
-        self.geometries = Geometries::new(&self.device, &mesh, &lines);
+    pub fn update_geometry(&mut self, mesh: Vertices) {
+        self.geometries = Geometries::new(&self.device, &mesh);
     }
 
     /// Resizes the render surface.
@@ -310,13 +309,8 @@ impl Renderer {
                 drawables.model.draw(&mut render_pass);
             }
 
-            if self.is_line_drawing_available() {
-                if config.draw_mesh {
-                    drawables.mesh.draw(&mut render_pass);
-                }
-                if config.draw_debug {
-                    drawables.lines.draw(&mut render_pass);
-                }
+            if self.is_line_drawing_available() && config.draw_mesh {
+                drawables.mesh.draw(&mut render_pass);
             }
         }
 
diff --git a/crates/fj-viewer/src/graphics/vertices.rs b/crates/fj-viewer/src/graphics/vertices.rs
index db641c4b1..d7f76c4a4 100644
--- a/crates/fj-viewer/src/graphics/vertices.rs
+++ b/crates/fj-viewer/src/graphics/vertices.rs
@@ -1,8 +1,5 @@
 use bytemuck::{Pod, Zeroable};
-use fj_interop::{
-    debug::DebugInfo,
-    mesh::{Index, Mesh},
-};
+use fj_interop::mesh::{Index, Mesh};
 use fj_math::{Point, Vector};
 
 #[derive(Debug)]
@@ -102,36 +99,6 @@ impl From<&Mesh<fj_math::Point<3>>> for Vertices {
     }
 }
 
-impl From<&DebugInfo> for Vertices {
-    fn from(debug_info: &DebugInfo) -> Self {
-        let mut self_ = Self::empty();
-
-        for triangle_edge_check in &debug_info.triangle_edge_checks {
-            let normal = [0.; 3];
-
-            let red = [1., 0., 0., 1.];
-            let green = [0., 1., 0., 1.];
-
-            let color = if triangle_edge_check.hits.len() % 2 == 0 {
-                red
-            } else {
-                green
-            };
-
-            self_.push_cross(triangle_edge_check.origin, normal, color);
-
-            for &hit in &triangle_edge_check.hits {
-                let line = hit.points();
-                let color = [0., 0., 0., 1.];
-
-                self_.push_line(line, normal, color);
-            }
-        }
-
-        self_
-    }
-}
-
 #[derive(Clone, Copy, Debug, PartialEq, Pod, Zeroable)]
 #[repr(C)]
 pub struct Vertex {
diff --git a/crates/fj-viewer/src/viewer.rs b/crates/fj-viewer/src/viewer.rs
index 92bbe9fa7..b99936d6d 100644
--- a/crates/fj-viewer/src/viewer.rs
+++ b/crates/fj-viewer/src/viewer.rs
@@ -59,17 +59,9 @@ impl Viewer {
         }
     }
 
-    /// Toggle the "draw debug" setting
-    pub fn toggle_draw_debug(&mut self) {
-        if self.renderer.is_line_drawing_available() {
-            self.draw_config.draw_debug = !self.draw_config.draw_debug;
-        }
-    }
-
     /// Handle the shape being updated
     pub fn handle_shape_update(&mut self, shape: ProcessedShape) {
-        self.renderer
-            .update_geometry((&shape.mesh).into(), (&shape.debug_info).into());
+        self.renderer.update_geometry((&shape.mesh).into());
 
         let aabb = shape.aabb;
         if self.shape.replace(shape).is_none() {
diff --git a/crates/fj-window/src/display.rs b/crates/fj-window/src/display.rs
index f02f731f9..93fd1fab0 100644
--- a/crates/fj-window/src/display.rs
+++ b/crates/fj-window/src/display.rs
@@ -73,9 +73,6 @@ pub fn display(mesh: Mesh<Point<3>>, invert_zoom: bool) -> Result<(), Error> {
                 VirtualKeyCode::Key2 => {
                     viewer.toggle_draw_mesh();
                 }
-                VirtualKeyCode::Key3 => {
-                    viewer.toggle_draw_debug();
-                }
                 _ => {}
             },
             Event::WindowEvent {