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SRT converter

A .srt file is a SubRip subtitle document: numbered cues with start and end timestamps and plain caption text. It is the most common caption sidecar for video players, editors, and streaming toolchains that need a simple, widely understood text format.

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Drop SRT files here

Batch files can each use a different output. Nothing uploads for local conversions.

Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.

Where SRT comes from

SubRip began as a DVD subtitle extraction utility around 2000 and its text export format became the de facto interchange for burned-off captions. Despite lacking an official standards body, .srt survived every subsequent caption wave (from desktop players to YouTube uploads) because it is trivial to read and write.

How SRT works

  • Cues are blocks of an index, a timecode arrow line (HH:MM:SS,mmm --> HH:MM:SS,mmm), one or more text lines, and a blank separator.
  • Timestamps use a comma as the decimal separator for milliseconds.
  • Styling is limited to a handful of informal HTML-like tags; layout and positioning are not standardized.
  • Files are plain UTF-8 or legacy code-page text with no binary container.

When to use SRT

  • Delivering captions alongside MP4 or MKV downloads
  • Editing dialogue timing in simple text tools
  • Converting between SubRip and WebVTT for web players
  • Archiving speech transcripts with timing

Strengths and limitations

Strengths

  • Universally understood by media players and editors
  • Human-editable in any text editor
  • Tiny files with no binary dependencies

Limitations

  • No standard support for advanced styling, voices, or regions
  • Millisecond comma syntax differs from WebVTT and confuses naive parsers

Compatibility

VLC, MPC-HC, PotPlayer, Premiere, HandBrake, YouTube, and virtually every desktop player ingest .srt. Browser video elements usually prefer WebVTT, so conversion is common for web delivery.

Convert SRT to another format

Convert other formats to SRT