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.
Edit against the video
See your video while you edit. Adjust text and timing on a timeline, with instant preview of every change.
AI transcription in 100+ languages
Generate subtitles automatically — including Cantonese and other Chinese variants that most tools get wrong.
Translate your subtitles
Create translated subtitle tracks alongside the original and export either one.
Burn captions into the video
Render stylish, readable captions directly into your video for social platforms.
Import and export SRT, VTT & more
Bring your own subtitle files, fix them up, and export in the format your player needs.
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 ConverterConvert between SRT, VTT, SBV, and plain text in your browser.
- SBV to TXT ConverterExtract clean plain text from YouTube .sbv subtitles.
- VTT to SRT ConverterTurn WebVTT captions into SubRip .srt files instantly.
- SRT to VTT ConverterTurn SubRip .srt files into web-ready WebVTT captions.
- SRT to TextStrip timestamps and numbering to get a clean transcript.
- Image to TextExtract text from images in your browser, with Fast and Accurate modes.
- Sync SubtitlesShift every subtitle earlier or later with millisecond precision.
- SRT EditorEdit subtitle text and timing in a simple table, no signup.
- Merge SRT FilesCombine 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.