Counterpunch vs Runebender

Counterpunch is a browser-based font studio for designing and editing fonts, with support for bidirectional complex-script shaping such as Arabic and Devanagari. It is built with variable fonts in mind, including weight, width, and custom axes. Users can edit components in place, inspect fonts through code-driven glyph filters, and use a Python environment to work with scripts; the maker says user code can catch and repair broken scripts. Its AI assistant generates Python scripts locally rather than sending font data to AI servers. The editor is GPLv3-licensed and usable without registration, and the maker says projects stay on the user’s device with minimal data collection. Installing it as a Progressive Web App enables offline editing, Python use, and preview compilation; the assistant still needs a connection and signed-in account. The editor is in Alpha, and documentation says it is not optimized for mobile. Pricing lists a Free plan at free and Basic at €5 a month.

Runebender is a free font editor for UFO and Designspace sources, with tools for glyphs, paths, filters, components, anchors, masters, interpolation, spacing, kerning, feature code, color fonts, text shaping, font information, and font checking. It opens UFO and Designspace files, Glyphs files and packages, and compiled TTF or OTF fonts; Glyphs files are converted to UFO, while compiled fonts are opened as UFOs in memory. Babelfont packages can also be imported. Experimental local models can suggest a heavier glyph master from a lighter one, and local chat is available through font-ml. The browser editor runs on the user's machine without uploading files, but it has interaction gaps and is not recommended for real work. The native application has no packaged release and is installed from source with Cargo. Runebender is alpha software and writes UFO and Designspace files in place, so the documentation advises working on copies and keeping sources under version control. The project is licensed Apache-2.0 or MIT and maintained independently, not as an official Linebender project.