Burn captions or subtitles directly into your video clips, for free. It is part of the Streams8K free AI toolbox — no sign-up, no watermark, unlimited use.

Yes. Caption Overlay is 100% free with unlimited uses: no account, no credit card, no hidden limits and no watermark on your downloads.

No. Caption Overlay runs right in your browser — just open this page and start. It works on any modern browser (Chrome, Edge, Firefox, Safari) on desktop or mobile.

No. Caption Overlay processes your files locally, inside your browser — they never get uploaded to a server, so nothing is stored or tracked.

Yes — add background music and a narration track, or use the Story Narrator MP3 from the same kit.

Follow the four steps above — most jobs take under ten seconds from start to download.