Video Subtitling

Somebody Should Set The Title For This Chapter!

GNOME Subtitles

GNOME Subtitles is a subtitle editor for the GNOME desktop. It supports the most common text-based subtitle formats and allows for subtitle editing, translation and synchronization.


Gnome also features built-in video previewing

  • Uses GStreamer backend
  • Built-in subtitle display
  • Video length and current position display
  • Set subtitle timings based on the video position
  • Automatically select video when opening subtitles


Internationalization (i18n) support, currently for:

  • Arabic (ar)
  • Brazilian Portuguese (pt_BR)
  • British English (en_GB)
  • Catalan (ca)
  • Czech (cs)
  • Danish (da)
  • Dzongkha (dz)
  • Finnish (fi)
  • French (fr)
  • German (de)
  • Greek (el)
  • Hebrew (he)
  • Italian (it)
  • Norwegian bokmÃ¥l (nb)
  • Occitan (oc)
  • Polish (pl)
  • Portuguese (pt)
  • Russian (ru)
  • Spanish (es)
  • Swedish (sv)

Subtitle Editor


Gaupol (

Gaupol is a software for the Windows operating system that translates subtitles on video from one language to another. Gaupol works in the following subtitle format:

  • Fully supported formats: MicroDVD, MPL2, MPsub, SubRip, SubViewer 2.0 and TMPlayer
  • Partially supported formats: Sub Station Alpha and Advanced Sub Station Alpha

Created to translate previously-created subtitles, Gaupol is not the best tool for initial subtitle creation or editing the original subtitles in the video. 


However, as a translation tool, Gaupol is effective and simple to use for text-based subtitles with many small but useful features like the ability to find and replace text, framerate conversion and previews of the edits in an external video player. Gaupol is designed so that users can easily translate a group of subtitles at the same time and assign each to a specific time in the video.

The editing tools include:

  • Unlimited undo and redo
  • Inserting, removing, splitting and merging subtitles
  • Find and replace, including regular expressions
  • Toggling of italics and dialog lines
  • Case changes
  • Spell-check
  • Common text error correction
  • Hearing impaired text removal
  • Breaking lines to a maximum length
  • Capitalizing lower case texts
  • Joining or splitting words based on spell-check suggestions
  • Adapting to different CD-splits of video
  • Position shift and transformation
  • Duration adjustment
  • Framerate conversion
  • Preview in an arbitrary external video player
  • Bookmarks