No upload · No watermark · No minute quotas
Convert SRT to VTT — free, both directions
Web players and HTML5 <track> tags want WebVTT; most subtitle files are SRT. CaptionForge converts between the two instantly, in your browser, free — the file never uploads. And because this is a full caption editor, you can also load the subtitles onto a video, restyle them and burn them in.
- Both directions free: SRT → VTT and VTT → SRT
- Instant — it's a text transform, done locally
- Timing and line breaks preserved exactly
- Bonus: restyle the same subtitles and burn them onto video
How it works
- 1 Drop your .srt or .vtt file into the editor above.
- 2 The cues load into the editor — review or fix anything.
- 3 Download in the other format.
Frequently asked questions
What's actually different between SRT and VTT?
They're close cousins. VTT starts with a WEBVTT header, uses dots instead of commas in timestamps (00:00:01.500 vs 00:00:01,500), doesn't require cue numbers, and supports styling/positioning metadata that SRT lacks. Browsers' native <track> element requires VTT; most desktop players and YouTube accept both.
Is the conversion free?
Yes — both directions, unlimited files, no signup. It's a millisecond text transform that runs locally; charging for it would be silly.
Does my subtitle file get uploaded?
No. The file is read and rewritten entirely in your browser — the same local-processing architecture as the video side of CaptionForge. You can verify in DevTools' Network tab.
Will my timestamps or line breaks change?
No — cue timing, text and line breaks pass through exactly. Only the container format changes. If your source file has malformed cues, the editor flags them instead of silently dropping them.
Can I burn these subtitles onto a video?
Yes — that's the main product. Drop the video, import the subtitle file (SRT import with restyle is a Studio feature), pick a style and export a burned-in MP4. Karaoke animation needs word-level timing, which plain SRT files don't carry — one click re-transcribes locally to unlock it.