Free, privacy-first transcript format converter. Convert between SRT, WebVTT, TXT, and JSON formats entirely in your browser.
Live: https://coppersundev.github.io/transcript-format-converter/
- 100% client-side - your files never leave your device. Verify with DevTools.
- No upload - no servers, no accounts, no signup.
- No ads, no tracking - no analytics scripts, no third-party requests after page load.
- All four formats - SRT, VTT, TXT, JSON in any direction.
- Speaker labels preserved -
[SPEAKER_00]:prefixes and WebVTT<v>voice tags are translated correctly.
- Paste your transcript into the Input box, or drag-and-drop a
.srt/.vtt/.txt/.jsonfile. - Pick the Source and Target formats.
- Copy or download the converted output.
No build step required. Edit index.html, app.js, style.css and open index.html in a browser.
To regenerate the format-pair landing pages after editing PAIR_TEMPLATE.html or _generate.js:
node _generate.jsBrassTranscripts produces accurate AI transcripts with automatic speaker identification in 1-3 minutes. Output is available in all the formats this tool converts between.
MIT. See LICENSE.