RoboFont

RoboFont is a font editor and development environment for type design, focused on extensibility and scripting. It runs on macOS and is used by professional designers to create and modify fonts.

The software uses the Unified Font Object (UFO) as its native data model and provides a graphical interface for drawing glyphs, editing contours, and managing font data such as metrics and kerning. It is designed to be scriptable with Python; the RoboFab API and FontTools are commonly used within RoboFont to access and manipulate font data programmatically.

Extensibility is a core feature. Users can write plug-ins and scripts to automate tasks, customize panels, or create new tooling. The built-in Python console and accompanying documentation support exploration and rapid prototyping of workflows.

Development and status: RoboFont was created by Just van Rossum and is maintained by a community of contributors. It is part of a broader ecosystem of font tools and is often used in conjunction with other editors and utilities in professional type design workflows.

See also: Font editors; Glyphs; FontForge; UFO (Unified Font Object).