YouTube Shorts captions, free in your browser

Burn animated word-by-word captions into a Short, or drop a longer talking video and get its best 30 or 60 seconds back as a vertical MP4, cut, framed on your face and captioned. The video never leaves your device.

Drop your video here
or click to choose. MP4 or MOV, or an audio file for subtitles.
  • 9:16 vertical
  • Video never uploaded
  • No sign-up
  • Free to use

Live preview, rendered on this page by the same engine that burns your video.

Three ways in, one vertical MP4 out

Shot vertical on a phone

The take exports at its own shape with the captions burned in. Twenty styles, all included, and a position slider to lift the words clear of the title and buttons YouTube draws over the bottom of a Short.

Recorded landscape

Choose Vertical, 9:16. Follow me moves the frame with you through the whole video, smoothly and only when you move. Fixed holds it where you place it. Fit everything keeps the full picture with a fill around it.

Longer than a Short

Choose the best 30 or 60 seconds. Burncaps lists every stretch that starts where a thought starts and ends where you finished a point, and Claude chooses the strongest. Ums, stutters and dead air are cut, and an opening card and a soft close are added.

What leaves your device for the 30 or 60 second cut

Only the transcript text, with each line's timing, the pause lengths and a word for how your voice moved, goes to our AI to choose the stretch. The video stays on your device, and the sound leaves only if you choose our speech service. Tick Keep everything on this device and a simpler built-in rule chooses the moment instead, with nothing sent.

The whole video or the best moment

What mattersThe whole videoThe best 30 or 60 seconds
What goes inA talking video up to ten minutes, any shapeA talking video up to ten minutes
What comes outEvery second, captioned: as recorded, or 9:16, 1:1 or 4:5The strongest 30 or 60 seconds as a vertical MP4, 1080 by 1920 on a computer
FramingAs recorded, Follow me, Fixed or Fit everythingOn your face, or the centre when no face is found
CutsNoneUms, stutters and dead air
Behind youAs recorded, blurred, a studio colour, your picture or a green screenThe same choices
PriceEither one uses one of your two free videos every 30 days; Pro, $49 once, makes them unlimited

Questions, answered plainly

Will the captions sit under the Shorts buttons?

Not if you place them with the position slider before you export. YouTube draws the title, your channel name and its buttons over the bottom of a Short, so lift the words above them; the preview shows where they will land.

Can I turn a landscape video into a Short?

Yes. Choose Vertical (9:16) with Follow me, and the frame moves with you through the whole video. Or choose the best 30 or 60 seconds, which comes out vertical and framed on your face.

How does it choose the best 30 or 60 seconds?

It lists every stretch of the right length that starts where a thought starts and ends where you finished a point, read from your punctuation, your pauses and the fall of your voice, then Claude chooses the strongest. Before you export, you can still cut or keep any word by hand.

Is there a watermark on the free version?

No. Free to use: two videos every 30 days with no mark, or $49 once for unlimited videos. The free videos come with every feature and no branding of ours anywhere on the export.

Is my video uploaded to Burncaps?

No. The video is opened, cut, captioned and exported in your browser. The sound leaves only if you choose our speech service, and for the best 30 or 60 seconds only the transcript text goes to our AI to choose the stretch; ticking Keep everything on this device stops that too.

Does the same file work on TikTok and Reels?

Yes. It is a standard vertical MP4 with the captions drawn into the picture, so one file posts to YouTube Shorts, TikTok and Instagram Reels.

Burncaps facts, checked 13 October 2026

What it is: a browser tool that burns animated word-by-word captions into a talking video, or cuts it to its best 30 or 60 seconds.

Price: free with every feature, for two videos every 30 days with no mark; Pro, $49 once, gives unlimited videos with no mark. Pro is not a subscription.

Privacy: the video never leaves your browser. The sound leaves only if you choose our speech service.

Files: MP4 or MOV up to ten minutes in; an MP4 with the captions burned in out. SRT, VTT, ASS and text files are free without limit for recordings up to ten minutes. A longer recording, up to 90 minutes on a computer, gives its script and those files: the first ten minutes free, all of it with Pro.

Languages and styles: captions in the language spoken, twelve Indian languages heard on your device, translation into 37 languages, 20 caption styles.

After it listens: correct any word (one click changes it everywhere), add or cut words, one to six words at a time, position, size, text and highlight colours, and names this browser remembers, all free and without listening again.

Made by: Jordan Labs Ltd, UK company no. 17358646.

Against other tools: fifteen caption tools compared, from the vendors' own pages.