Automatic captions
Speech-to-text turns your audio into captions with word-level timing, so karaoke highlighting lands on the right syllable. Fix any word by double-clicking it.
100% free · No sign-up · Nothing uploaded
Add captions to your video in seconds
Captions timed to every word, in seconds. Cut long recordings into shorts, crop vertical, grade the colour, export an MP4 — all in this tab, on your own device.
- Auto captions
- 62 caption styles
- Long video → shorts
- Crop to 9:16
- Colour grading
- MP4 export
Drag or drop your video here
or click to choose a file
MP4, MOV or WebM · nothing is uploaded · works on phones too
It’s that easy!
- Your video is never uploaded
- Exports straight to your disk
Cinematic
- Auto captionsTimed to every word
- Smart crop9:16 ready
- Colour gradeCinematic looks
- Export MP4Up to 1080p
In short
AI Caption Cut is a free caption generator that runs entirely in your browser. It transcribes your video on your own device, so nothing is uploaded and no account is needed. It is built for creators posting Reels, Shorts — including in Hindi and Hinglish — who want word-timed captions, a vertical crop and an MP4 without a subscription. Editing and 480p export are free; removing the watermark and exporting in HD is a one-off payment for that video, never a subscription.
Everything you need to caption a short video
Built for reels and shorts — the captions people actually stop scrolling for.
Caption styles
Dynamic mixed-font looks, trending, bold, clean, elegant, fun and minimal — including three built for Hindi. Every template is a real preview: what you see is exactly what exports.
Caption animations
Pop, bounce, typewriter, blur, wave, slide and more — each one combines with word-by-word karaoke highlighting.
Real editing
Trim and split on the timeline, join clips, crop to 9:16, 1:1 or 16:9, change speed, and drop text on top.
Private by design
Your video is never uploaded. It is read straight from your disk, rendered on your device, and saved back there.
Free MP4 export
Burn captions in and download straight to your device, free and unlimited, with no account. Pay once to drop the watermark and go higher than 480p.
From raw clip to captioned video in four steps
- 1
Choose your video
MP4, MOV or WebM. Pick one or several — they join into a single timeline.
- 2
Generate captions
Speech-to-text runs on your device and writes the captions for you. Edit any word.
- 3
Pick a style
Choose a template, then tune the font, colours, position and animation.
- 4
Export
Preview it full screen, then download the finished MP4 to your device.
Caption styles, ready to go
Every style below is a genuine preview, drawn by the same renderer that makes your final video — what you see is exactly what exports.
All 62 styles are in the editor — then tune the font, colour, position and animation.
Is AI Caption Cut right for you?
A good fit if you want to…
- Caption a video without creating an account or handing over an email.
- Keep private, client or unreleased footage off someone else's servers — nothing is uploaded.
- Pay once for the video you are making, instead of a monthly subscription.
- Work on short-form clips: Reels, Shorts and vertical video.
- Caption on your phone, or offline on a plane.
Probably not for you if you need…
- A free export with no watermark — free exports are 480p and carry a small mark.
- To caption long-form video. Rendering runs on your own hardware, so a feature-length file takes proportionally longer.
- Team collaboration, cloud projects or a shared asset library.
- To export dozens of videos a day — a subscription tool will cost you less.
Frequently asked questions
Is AI Caption Cut free?+
Yes. You can add a video, generate captions, style them and export as many finished videos as you like for free, with no account. Free exports come out at 480p with a small aicaptioncut.com watermark in the corner. Paying once removes the watermark on a particular video, at 720p or at full 1080p and 60fps — or a 30-day Unlimited Pass covers every export. Subtitle files are free on every tier. Charged in your own currency, and there is no subscription.
Can I add captions to a video without uploading it anywhere?+
Yes — this is the main thing that sets AI Caption Cut apart. Most caption tools upload your video to their servers to process it. AI Caption Cut reads the file straight from your disk and does the speech-to-text, the styling and the final render inside your own browser, on your own device. The video never leaves your computer or phone, which matters for unreleased, client or private footage.
Is there a caption editor with no subscription?+
AI Caption Cut is free to use, and charges once per video only if you want to remove the watermark. There is no monthly fee. If you caption a video every day and always want it watermark-free, a subscription tool may work out cheaper.
Can I export a video without a watermark?+
Free exports carry a small watermark in the corner. Removing it is a one-off payment for that video — 720p, or full 1080p at 60fps — or a 30-day Unlimited Pass covering every export. Neither is a subscription; nothing renews. Subtitle files are free either way, and re-exporting a video you paid for is free.
Is this the same as Caption Cut Pro for Final Cut Pro?+
No — different products with similar names. Caption Cut Pro is a paid plugin for Final Cut Pro on macOS, so you need a Mac and a copy of Final Cut to use it. AI Caption Cut is a website: it runs in any browser on Windows, macOS, Android or iPhone, needs no install and no account, and does the captioning itself rather than adding a panel to another editor.
Do I need to create an account?+
No. There is no sign-up, no email and no password. Your projects are saved in your own browser.
Is my video uploaded to a server?+
No. Your video is read directly from your disk and every step — caption generation, styling and the final render — happens inside your browser on your own device. The file never leaves your computer or phone.
What video formats can I use?+
MP4, MOV and WebM. If your browser cannot decode a file (some iPhone HEVC recordings, for example), AI Caption Cut offers to convert it for you first.
Which languages are supported?+
Fifteen: English, Hinglish (Indian), Spanish, French, German, Italian, Portuguese, Dutch, Russian, Polish, Japanese, Korean, Chinese, Turkish and Indonesian. Only languages the on-device model handles well are offered. Hinglish is Hindi speech written in Roman letters, the way creators caption reels. Pick the spoken language before generating for the most accurate timings.
Can I edit the captions afterwards?+
Yes. Change any word, retime a caption by dragging it on the timeline, and split, merge, delete or add captions by hand.
Can I use it on my phone?+
Yes. AI Caption Cut works on Android and iPhone, and can be installed to your home screen as an app. The editor has a dedicated touch layout with the timeline and tools laid out for a phone.
Does it work offline?+
Once loaded, the editor works offline. The speech-to-text model downloads the first time you generate captions and is then cached for later use.
Your video. Your machine.
Your captions.
No account, no upload, no install. Open a video and start.
I got tired of handing my videos to some website just to add subtitles. So I built one that never does — the transcription, the styling and the render all run on your own machine.
Built by people who film too much and trust too few upload buttons.