As of May 31, 2023, we have updated our Code of Conduct.

An edge and line-based non-photorealistic (NPR) rendering engine. Available in Blender since version 2.67. Use this tag for all of your Freestyle related questions.

Freestyle is an edge/line-based non-photorealistic (NPR) rendering engine. It relies on mesh data and Z-depth information to draw lines on selected edge types. Various line styles can be added to produce artistic (“hand drawn”, “painted”, etc.) or technical (hard line) looks.

Freestyle at the Blender Manual