Burncaps burns animated word-by-word captions into short-form video, entirely inside your browser. It is made by Jordan Labs Ltd, a company registered in England and Wales, company number 17358646. Support and refunds go through one address that a person reads: hello@burncaps.app.
Everything happens on your own machine. The speech model transcribes locally and your browser's own video encoder writes the finished MP4, so no video ever touches a server we pay for. There is no per-video cost to recover, which is why the free tier has no minute caps, no watermark and no account. Tools that upload your file have to charge you for the servers doing the work; we do not have that bill.
Do not take the privacy claim on faith, it takes about thirty seconds to test. Open your browser's developer tools, select the Network tab, then caption a video here. The first run downloads the AI model once from Hugging Face's CDN, roughly 80 MB, and caches it. After that you will see no request carrying your video, your audio or your transcript, because there is nowhere for them to go. You can also switch your connection off after the model has downloaded and keep working.
Pro is £29 once, not a subscription. It adds the premium caption styles and the maximum-accuracy model. Card payments are handled by Stripe, so we never see your card details. Your licence key appears on the confirmation page the moment the payment clears and is repeated in your Stripe receipt. If Pro does not work on your machine, email us within 14 days and we refund in full.
Burning captions into video uses WebCodecs, which today means a Chromium browser on a desktop or laptop: Chrome, Edge, Brave or Arc. In Safari and Firefox you can still transcribe and export subtitle files, but not the finished video. Input files are MP4 and MOV. Long recordings take longer on slower machines because the work is yours, not a queue on our side. AI transcription makes mistakes, so every word stays editable until you export.
OpenAI's Whisper speech model in its open-source MIT-licensed ONNX builds, run through transformers.js; the browser's WebCodecs encoder with mp4box and mp4-muxer for the export. Burncaps is not affiliated with OpenAI, Submagic, CapCut, TikTok, Instagram or YouTube.
Email hello@burncaps.app for support, refunds, bugs or anything about your data. There is no ticket portal and no bot to get past. Legal detail lives in the terms and the privacy policy.