Subtitle Edit
Open-source video subtitle editor
From Wikipedia, the free encyclopedia
Subtitle Edit (also known as SE) is a free and open-source subtitle editor for creating, editing, adjusting or synchronizing subtitles for videos.
/ 29 July 2026Borland Delphi (2001 - 2009)
[2][3]
| Subtitle Edit | |
|---|---|
 | |
 Subtitle Edit in Dark Mode on Windows 11 Main window with wave form and video player | |
| Developer | Nikolaj Lynge Olsson |
| Stable release | 5.1.0[1]
/ 29 July 2026 |
| Preview release | N/A |
| Written in | C# (2009 - Present) Borland Delphi (2001 - 2009) [2][3] |
| Operating system |
|
| Platform | |
| Size | 30.8 MB – 141 MB |
| Available in | 34 languages |
List of languages English, Chinese, Argentina, Basque, Brazilian Portuguese, Bulgarian, Catalan, Chinese, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hungarian, Italian, Macedonian, Norwegian, Persian, Japanese, Korean, Polish, Portuguese, Romanian, Russian, Serbian, Slovenian, Spanish, Swedish, Thai, Turkish, Ukrainian, Vietnamese | |
| Type | Subtitle editor |
| License | GNU General Public License v3.0 |
| Website | nikse |
| Repository | |
Features
SE supports 250+ subtitle formats. Some of the most popular ones are SubRip, Timed Text, DFXP (Netflix standards), ITT (iTunes), SubStation Alpha, MicroDVD, SAMI, D-Cinema and BdSub.Support for these formats isn't complete, though. For instance, WebVTT is one of the supported formats, but none of its styling features are supported.
As of version 5.0, SE relies on either the VLC media player or mpv for video playback, and FFmpeg for waveform generation.
SE is available in 34 languages and works on Windows and Linux.
Development
In 2001, Nikolaj Lynge Olsson had started the development of Subtitle Edit in Delphi which continued until April 2009. On 6 March 2009, 2.0 Beta 1 version (build 42401) was released.[3]
Over time, more developers have contributed to SE's development, and it is still active. It is hosted at GitHub.
On 17 May 2011, the developer announced the testing version of SE 3.2 for Linux.[4] It uses the same source code that was developed for Windows, to implement it on Linux using Mono Project.
On 17 October 2011, the developer announced the availability of stable version for Linux.[5] The developer himself stated that it is working well on Ubuntu.
Version 5.0, released in June 2026, is a full rewrite, using the Avalonia framework and .NET 10. It is self-contained and requires no .NET installation. It is cross-platform and supports macOS.[6]
