FICHA · FLATHUB

Subtitle Composer

Video subtitle editor that supports basic and advanced editing operations

  • App
  • GUI
  • VIDEO
  • ACCESSIBILITY
  • Launchable
  • Same app · 2 sources
Official OARS · imported from upstream · official · May 24, 2026 description in en

Description

Subtitle Composer is an open source text-based subtitle editor that supports basic and advanced editing operations.

Features

Open/Save Text Subtitle Formats - SubRip/SRT, MicroDVD, SSA/ASS, MPlayer, TMPlayer and YouTube captions

Open/OCR Graphics Subtitle Formats - VobSub (.idx/.sub/.rar), BluRay/PGS (*.sup), formats supported by ffmpeg (DVD/Vob, DVB, XSUB, HDMV-PGS)

Demux Graphics/Text Subtitle Stream from video file - SRT, SSA/ASS, MOV text, MicroDVD, DVD/Vob, DVB, XSUB, HDMV-PGS

Speech recognition from audio/video file using PocketSphinx

Smart language/text encoding** detection

Live preview of subtitles in integrated video player w/ audio stream selection

Preview/editing of subtitles on graphical audio waveform w/ audio stream selection

Sync by dragging several anchors/graftpoints and stretching timeline

Time shifting and scaling, lines duration re-calculation, framerate conversion, etc.

Joining and splitting of subtitle files

Side by side subtitle translations

Text styles (italic, bold, underline, stroke, color)

Spell checking

Detection of timing errors in subtitles

Scripting (JavaScript, Python, Ruby and other languages supported by Kross).

How to run

subtitlecomposer

Commands: subtitlecomposer

Permissions

Permissions not analysed for this source yet.