Aegisub is a free, open source cross-platform fully fledged, highly customizable tool for creating and modifying subtitles. This application makes it simple to time subtitles to audio, and features many powerful tools for styling them, including a built-in real-time video preview.
Aegisub features many 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).
Aegisub’s native subtitle format is Advanced SubStation Alpha text, which supports subtitle positioning and styling. The program also supports other common formats such as SubRip.
Aegisub is used for translating, timing, editing, typesetting, quality checking, karaoke timing and karaoke effecting.
Key Features
- 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.
Website: github.com/Aegisub/Aegisub
Support:
Developer: Niels Martin Hansen, Rodrigo Braz Monteiro
License: 3-clause BSD or ISC licenses

Aegisub is written in C++ and C#. Learn C++ with our recommended free books and free tutorials. Learn C# with our recommended free books and free tutorials.
Related Software
| Subtitle Editors | |
|---|---|
| Subtitle Edit | Versatile and feature-laden editor for video subtitles |
| Gaupol | Editor for text-based subtitle files |
| Aegisub | Highly customizable tool for creating and modifying subtitles |
| AutoSubs | Subtitles made simple |
| Subtitle Composer | Editor that supports basic and advanced operations |
| Jubler | Author new subtitles - convert, transform, correct and refine |
| Gnome Subtitles | Video subtitling for the GNOME desktop |
| YTSubConverter | Create styled YouTube subtitles |
| Subtitle Forge | Desktop application for working with subtitles across the full workflow |
| Subtitle Editor | GTK+3 tool to edit subtitles |
| Subtitld | Edit, transcribe and create subtitles |
| subedit | Command-line editor written in Bash |
Read our verdict in the software roundup.
| DVD Tools | |
|---|---|
| VLC | Multimedia player and streamer |
| mpv | Media player supporting a wide range of formats |
| HandBrake | Multithreaded DVD to MPEG-4 converter |
| QMPlay2 | Qt based video and audio player |
| fre:ac | Audio converter and CD ripper |
| Subtitle Edit | Editor for video subtitles |
| Asunder | Audio CD ripper and encoder |
| FFmpeg | Record, convert and stream audio and video |
| grip | cd-player and cd-ripper for the Gnome desktop |
| Shutter Encoder | Accessible and efficient video converter tool |
| cyanrip | Fully featured CD ripping software |
| GCstar | Manages a movie collection |
| Gaupol | Subtitle editor for text-based subtitle files |
| DataCrow | Media cataloger and media organiser software |
| Tellico | Collection manager for KDE |
| MPlayer | Very popular movie player |
| DVDStyler | DVD authoring application |
| Aegisub | Tool for creating and modifying subtitles |
| Q DVD-Author | GUI frontend for dvdauthor and related tools |
| whipper | Python CD-DA ripper |
| DVDAuthor | Generate a DVD-Video movie from a valid MPEG-2 stream |
Read our verdict in the software roundup.
Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Discovered a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |

