Runebender is a cross-platform, free and open-source font editor built on the Linebender ecosystem of Rust crates.

In the tradition of font editors like RoboFont, Runebender is designed to be a starting point for building your own custom tools and workflows.

Runebender uses UFO and Designspace sources. It also opens Glyphs and Fontra sources with basic alpha support, and imports compiled TTF and OTF fonts. See supported formats and limitations for details.

Runebender is designed for working with local AI, with tools and workflows built around models running on your own computer.