How to add captions to a video
Five steps, one browser tab, zero watermarks. Captions are edited right on the timeline, so what you preview is exactly what exports.
Free. Runs in Chrome, Edge, Brave or Arc. Nothing to install.
Open Caption Room and sign in
Go to app.captionroom.app in Chrome, Edge, Brave or Arc and sign in with a free account — nothing to install, no credit card, no trial timer.
Drop your video on the timeline
Drag the file in. The editor works on it inside your browser, so nothing uploads and there is no render queue.
Add the captions
Type them yourself in the free editor, or let Pro’s AI listen once and time every word automatically — in 99+ languages.
Pick a caption style
Choose a look — Classic and Minimal are free — and watch the karaoke highlight follow each word as the video plays.
Export
Render in the tab, on your own hardware, with the captions burned in exactly as you saw them — or export an .srt file instead. No watermark.
Typing them is free. The AI is faster.
For a 30-second clip, typing captions in the free editor takes a few minutes. For anything longer — or for word-by-word karaoke timing — the AI subtitle generator on Pro listens to the clip once and times every single word for you, in 99+ languages. Either way the result lands on the same timeline, fully editable before you export.
Caption questions
Can I add captions to a video for free?
Yes. Caption Room’s editor is free: type your captions on the timeline, style them with the Classic or Minimal look, and export in 1080p with no watermark. The AI that auto-captions for you is the Pro feature.
Are the captions burned in, or a separate file?
Your choice. Export the video with captions burned in exactly as previewed, or export a standard .srt subtitle file to upload alongside the video.
What are karaoke captions?
Captions where the highlight moves word by word as it’s spoken — the style TikTok and Reels made standard. Caption Room times every word, so the highlight lands exactly on the beat.
Does it work in my language?
Typed captions work in any language. The AI auto-captions understand 99+ languages and can translate your captions to another language too.
Make your next clip impossible to scroll past.
A fast editor that opens in a browser tab and is free to edit with, and AI captions in 99+ languages on Pro. Open it, sign in with a free account, and post your next clip today.
Free. Runs in Chrome, Edge, Brave or Arc. Nothing to install.
- Nothing to install
- Free to start
- Always up to date
- No watermarks
Works in Chrome, Edge, Brave or Arc on Windows, Mac, Linux and ChromeOS. There is no installer and no update to run. Every visit opens the newest version, and a free Caption Room account is all you need.