Aegisub

Create and modify subtitles

by Aegisub Group

Graphics & DesignFree softwareAll ages

Screenshots & videos

About

Aegisub is a free, cross-platform open source tool for creating and modifying subtitles. Aegisub makes it quick and easy to time subtitles to audio, and features many powerful tools for styling them, including a built-in real-time video preview. Aegisub was originally created as a tool to make typesetting, particularly in anime fansubs, a less painful experience. At the time of the start of the project, many other programs that supported the Advanced Substation Alpha format lacked (and in many cases, still lack; development on several competing programs have since been dropped for various reasons completely unrelated to Aegisub) many vital functions, or were too buggy and/or unreliable to be really useful. Since then, Aegisub has grown into a fully fledged, highly customizable subtitle editor. It features a lot of convenient tools to help you with timing, typesetting, editing and translating subtitles, as well as a powerful scripting environment called Automation (originally mostly intended for creating karaoke effects, Automation can now be used much else, including creating macros and various other convenient tools). Some highlights of Aegisub: - Simple and intuitive yet powerful interface for editing subtitles - Support for many formats and character sets - Powerful video mode - Visual typesetting tools - Intuitive and customizable audio timing mode - Fully scriptable through the Automation module

Additional information

Project

Developer
Aegisub Group
Publisher
procles
License
BSD-3-Clause AND MIT AND MPL-1.1 (free software)What this license lets you do
Homepage
aegisub.org
Languages
34 languages

Install

Available via
Flatpak · Snap (2) · Arch Linux (7) · Debian · Ubuntu · Fedora · openSUSE · Void Linux · Solus · Gentoo · Nixpkgs
All 18 packagings

Flathub (Flatpak), Snap Store, Snap Store (Nightly build), AUR (Arch1t3cht build), AUR (AppImage · Arch1t3cht build), AUR (Git · Arch1t3cht build), AUR (Git · Xdg build), AUR (Git build), AUR (Git · Japan7 build), Debian, Ubuntu, Fedora, Arch Linux, Nixpkgs, openSUSE, Void Linux, Solus, Gentoo (Candidate build)

Flatpak sandbox
Limited access

Runs in a sandbox with no access to your personal files or devices beyond what's listed.

What it can access
  • Plays and records audio

About this data

Sources
23 independent sources agree
Catalog data as of
October 12, 2026
How each source lists it (18)
SourceNameVersionBuilt byLicenseDescription
Flathub (Flatpak)Aegisub3.5.0—BSD-3-Clause AND MIT AND MPL-1.1Create and modify subtitles
Snap StoreAegisub3.4.2-snap2—BSD-3-Clause-ClearAdvanced subtitle editor
Snap Store (Nightly build)Aegisub3.4.2-snap3—BSD-3-Clause-ClearAdvanced subtitle editor
AUR (Arch1t3cht build)aegisub-arch1t3cht12-2Community build, patchedBSD-3-ClauseA general-purpose subtitle editor with ASS/SSA support (arch1t3cht fork)
AUR (AppImage · Arch1t3cht build)aegisub-arch1t3cht-appimagefeature_12-2Community repackBSD-3-ClauseA general-purpose subtitle editor with ASS/SSA support (arch1t3cht fork) (AppImage version)
AUR (Git · Arch1t3cht build)aegisub-arch1t3cht-git3.4.1.r411.g56a8340-1Community build, patchedBSD AND GPLA general-purpose subtitle editor with ASS/SSA support (arch1t3cht fork)
AUR (Git · Xdg build)aegisub-arch1t3cht-xdg-git3.2.2.r1221.7db477c3e+xdg-1Community build, patchedBSD AND GPLA general-purpose subtitle editor with ASS/SSA support (arch1t3cht fork + XDG patch)