https://github.com/heriet/cappan

Font rendering engine implemented in pure Zig
https://github.com/heriet/cappan

font-rendering

Last synced: 6 days ago
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Font rendering engine implemented in pure Zig

• Host: GitHub
• URL: https://github.com/heriet/cappan
• Owner: heriet
• License: 0bsd
• Created: 2026-06-18T17:35:53.000Z (15 days ago)
• Default Branch: main
• Last Pushed: 2026-06-19T10:51:49.000Z (15 days ago)
• Last Synced: 2026-06-19T12:24:12.086Z (15 days ago)
• Topics: font-rendering
• Language: Zig
• Homepage: https://heriet.github.io/cappan/
• Size: 9.99 MB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# cappan

**cappan** (活版) is a font rendering engine implemented in pure Zig. It provides library and tools.

![medial-axis writing-order weighted](cappan_doc/content/guide/image/incremental-rendering/medial_axis_writing_weighted.png)

[Demo on browser](https://heriet.github.io/cappan/demo/)

- Most of this project was built with AI

- This is a personal learning and experimentation project — expect breaking changes. Not recommended for production use

## Features

- Render text from font files to images

- **Incremental rendering** — watch text appear one character at a time

- **Font inspection** and **validation**

- **Font subsetting** — strip a font down to just the characters you need

- CSS metrics comparison across fonts

- And more...