Handwriter.ttf – Handwriting Synthesis with Harfbuzz WASM
During the hype of llama.ttf months ago, I was speculating the potential of WASM shaper for even crazier purpose, one that fitter to a font shaper's duty -- to synthesize font at runtime. This project as proof-of-concept implements a synthesizer that generates and rasterizes handwriting-style font, backed by a super-lightweight RNN model (~14MiB).
In plain words
Handwriter.ttf is a font synthesis tool that generates handwriting-style text at runtime using a lightweight RNN model integrated with Harfbuzz and WebAssembly. It dynamically creates and rasterizes fonts rather than using pre-built character sets, making each rendering unique. The project is designed for developers and designers interested in experimental typography and runtime font generation, with a minimal 14MB model footprint enabling practical browser-based use.
written from the facts on this page · September 2026
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