Caption your video without uploading it
Almost every caption tool requires you to upload your footage to their servers first. AI Caption Cut does not — the speech-to-text, styling and rendering all happen in your browser, on your own device. Your video never leaves your machine.
Why on-device matters
Uploading your raw footage means trusting a company to store, process and delete it. For client work under NDA, unreleased content, anything personal, or footage you simply would rather not hand over, that is a real problem — not a hypothetical one.
Because AI Caption Cut reads the file from your disk and processes it locally, there is nothing to upload and nothing stored elsewhere. It also removes the upload wait and the file-size limits that cloud tools impose.
How it works without a server
The speech model runs in your browser using your device’s own processor. Captions are generated with word-level timing, styled on a live preview, and the final video is rendered locally and saved back to your disk.
The honest trade-off: your laptop is not a GPU farm, so a long video takes real minutes to transcribe. In exchange you get privacy, no upload wait, no size cap, no account, and it keeps working offline.
Free, private, no subscription
AI Caption Cut is free to use with unlimited 480p exports that carry a small watermark. Removing the watermark is a one-off payment per video — ₹39 for 720p, ₹59 for 1080p (Full HD). There is no subscription and no account.
Questions
Can I add captions to a video without uploading it anywhere?
Yes. AI Caption Cut runs entirely in your browser on your own device. Your video is read from disk, captioned and rendered locally, and never uploaded to any server.
Is it safe for confidential or client footage?
Because nothing is uploaded, your footage never leaves your device — there is no server copy to store, leak or subpoena. That makes it suited to NDA work, unreleased content and anything personal.
How can it caption without a server?
The speech-to-text model runs locally in your browser using your device’s processor. There is no cloud step, which is also why there is no upload wait and no file-size limit.
Is it free?
AI Caption Cut is free to use with unlimited 480p exports that carry a small watermark. Removing the watermark is a one-off payment per video — ₹39 for 720p, ₹59 for 1080p (Full HD). There is no subscription and no account.
More free caption tools
Try it on your own video
Nothing to install, no account, and your video never leaves your device. Free exports are unlimited.
Caption my video — free