Subtitle Editor
Edit subtitles with the video in view, transcribe with AI in 100+ languages, translate, and burn beautiful captions into your video — all in the browser.
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Edit against the video
See your video while you edit. Adjust text and timing on a timeline, with instant preview of every change.
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AI transcription in 100+ languages
Generate subtitles automatically — including Cantonese and other Chinese variants that most tools get wrong.
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Translate your subtitles
Create translated subtitle tracks alongside the original and export either one.
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Burn captions into the video
Render stylish, readable captions directly into your video for social platforms.
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Import and export SRT, VTT & more
Bring your own subtitle files, fix them up, and export in the format your player needs.
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Free to start
Edit and export subtitles on the free plan; upgrade only when you need more rendered video.
Just need a quick fix? Free subtitle utilities
No signup needed — these run entirely in your browser:
- Subtitle Converter Convert between SRT, VTT, SBV, and plain text in your browser.
- VTT to SRT Converter Turn WebVTT captions into SubRip .srt files instantly.
- SRT to VTT Converter Turn SubRip .srt files into web-ready WebVTT captions.
- SRT to Text Strip timestamps and numbering to get a clean transcript.
- Sync Subtitles Shift every subtitle earlier or later with millisecond precision.
- SRT Editor Edit subtitle text and timing in a simple table, no signup.
- Merge SRT Files Combine two SRT files into one, renumbered and retimed.
Frequently asked questions
- What is the best way to edit subtitles online?
- For quick fixes to an existing .srt file, the free SRT editor on this site works right in your browser. For serious work — editing against the video, transcribing, translating, or burning captions in — use the full Captioner editor, which is free to start.
- Can Captioner generate subtitles automatically?
- Yes. Captioner transcribes video and audio with AI in more than 100 languages and dialects, including Cantonese, then lets you fine-tune every cue in the editor.
- Do I need to install anything?
- No. Both the free utilities and the full editor run in your web browser on desktop and mobile.
- Can I burn the subtitles into the video?
- Yes. The full editor renders styled captions directly into your video — ideal for TikTok, Reels, YouTube Shorts, and RedNote.
- Is there a free version?
- Yes. The utility tools on this page are entirely free, and the Captioner editor has a free tier — no credit card required to start.