Two ways, both free: burn animated word-by-word captions into the video itself, or export a subtitle file for the platform to overlay. Either way the AI transcribes in your browser and your video never leaves your device.
Subtitle a video freeLive preview, rendered on this page by the same engine that burns your video.
Drawn into the pixels, always visible, animated word by word. The format that holds attention on TikTok, Reels and Shorts, where most viewers watch on mute. Export is a clean new MP4.
SRT, VTT or ASS alongside your video. YouTube and podcast platforms index the text, viewers toggle captions on and off, and screen readers benefit. The right choice for long-form and accessibility.
Drop the file, click any word that needs fixing, export. Whisper times every word on your own hardware; nothing queues on a server and nothing is uploaded, which you can verify in the network tab.
| What matters | Burncaps | Typical free subtitle tool |
|---|---|---|
| Price | Free. Pro is £29 once | Free trial, then £15 to £20 per month |
| Watermark | Never | Usually on the free tier |
| Limits | None | Minutes-per-month or per-video caps |
| Your video | Stays on your device | Uploaded to their servers |
| Account | None | Required before export |
| Animated word-by-word styles | 10, live-rendered on this page | Varies, often paid |
Burned-in (open) captions are drawn into the video's pixels, so they show everywhere and can be animated word by word. Closed captions live in a separate file (like SRT) that platforms overlay and viewers can toggle. Social feeds favour burned-in; YouTube and accessibility workflows favour a file. Burncaps produces both.
Yes. Unlimited videos, any length, no watermark, no account. The AI runs on your device so serving you costs nearly nothing, which is why the free tier can be real. A one-time £29 Pro unlock adds premium styles and the max-accuracy model.
The model downloads once (about 80 MB, then cached). Transcription typically runs faster than the clip's length on a modern laptop, and export is hardware accelerated: a 12-second 1080p vertical clip exports in about 15 seconds on an ordinary machine.
No. Everything runs in the web page. For burned-in MP4 export use Chrome or Edge on a computer; subtitle-file export works in most modern browsers, phones included.
About 100 languages through Whisper, with auto-detect. English is strongest; the Pro max-accuracy model narrows the gap in other languages.