libass ☆

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Description:
Subtitle renderer for the ASS/SSA subtitle format

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Multimedia

Tags: subtitles multimedia c-library video rendering

Install: brew install libass

About:
Libass is a portable, high-performance C library for rendering ASS/SSA subtitle formats. It provides advanced styling, positioning, and karaoke effects support, making it the de facto standard for subtitle rendering in major media players and applications.

Key Features:

High-performance C library with no external dependencies
Full support for ASS/SSA subtitle features including advanced styling and positioning
Karaoke effects and animated transformations
Platform-independent with bindings for multiple languages

Use Cases:

Integrating subtitle rendering into media players and video applications
Converting and processing ASS/SSA subtitle files
Building cross-platform video editing or streaming software

Alternatives:

vsfilter – Windows-specific and less portable, but legacy DirectShow compatibility
libass-ng – Fork with minimal development activity; original libass is more actively maintained

Version History

Detected	Version	Rev	Change	Commit
Sep 14, 2025 9:12pm		0	VERSION_BUMP	c1ffb402
Nov 25, 2024 11:55pm		0	VERSION_BUMP	2a524916