libass
Install command:
brew install libassSubtitle renderer for the ASS/SSA subtitle format
https://github.com/libass/libass
License: ISC
Development: Pull requests
Formula JSON API: /api/formula/libass.json
Formula code: libass.rb on GitHub
Bottle (binary package) installation support provided for:
| macOS on Apple Silicon |
golden gate | ✅ |
|---|---|---|
| tahoe | ✅ | |
| sequoia | ✅ | |
| Linux | ARM64 | ✅ |
| x86_64 | ✅ |
Current versions:
| stable | ✅ | 0.17.5 |
| head | ⚡️ | HEAD |
Revision: 1
Depends on:
| freetype | 2.15.0 | Software library to render fonts |
| fribidi | 1.0.18 | Implementation of the Unicode BiDi algorithm |
| harfbuzz | 15.0.0 | OpenType text shaping engine |
| libunibreak | 8.0 | Implementation of the Unicode line- and word-breaking algorithms |
Depends on when building from source:
| pkgconf | 3.0.10 | Package compiler and linker metadata toolkit |
GitHub Packages downloads:
| Last 30 days | 214,266 |
|---|---|
| Downloads | 19,372,777 |
| Analytics install events (30 days) | 11,552 |
| Downloads / install events (30 days) | 18.6× |
Source: GitHub Packages, fetched 2026-11-02T00:42:44Z. Analytics dates: 2026-10-03 to 2026-11-02. Totals exclude downloads from Bintray before the migration to GitHub Packages. Downloads and install attempts measure different things; the difference does not count analytics opt-outs. Definitions and limitations.
Analytics:
| 30 days | 90 days | 365 days | |
|---|---|---|---|
| Installs | 11,544 | 29,380 | 192,374 |
Installs (--HEAD) | 8 | 22 | 82 |
| Installs on Request | 3,742 | 9,321 | 45,424 |
Installs on Request (--HEAD) | 8 | 22 | 82 |
| Build Errors | 4 |