Everything you need,
nothing you don't.
AI Subtitle Generation
Powered by Whisper.js running entirely in your browser. State-of-the-art speech recognition, zero cloud dependency.
Smart Face Tracking
Subtitles follow the speaker. Face detection keeps text away from the face automatically.
Split Subtitle Mode
Split subtitles above and below the speaker, or left and right — powered by face tracking.
Background Removal
Remove or blur the background with AI — runs entirely in your browser, no uploads.
25+ Fonts & Custom Styles
Colors, shadows, emphasis effects, and word-by-word highlighting.
100+ Languages
Whisper AI understands speech in over 100 languages out of the box.
Export with Baked-in Subs
Download video with subtitles permanently rendered in.
Works Offline
After the first load, everything is cached. Process videos anywhere.
Free. No Sign-up. No Watermarks.
No accounts, no paywalls, no limitations. Your videos, your subtitles.
Processing locally
All AI models run in this browser tab
0 network requests — all processing happens on your device
Your browser is
the entire studio.
No cloud. No uploads. No tracking. The AI models download once, then everything runs locally using WebGPU and WebAssembly. Your video files never leave your machine.
No servers
Zero backend. Your video never touches a remote machine.
No data collection
We don't track, store, or analyze any of your content.
Your CPU does the work
WebGPU + WASM powered AI runs on your own hardware.
Nothing stored
Files stay in memory during processing, then vanish.
Three steps. That's it.
Drop your video
Drag a video file into the browser. MP4, MOV, WebM — up to 2 hours. Nothing gets uploaded anywhere.
Generate subtitles
Whisper AI transcribes your audio locally. Customize fonts, colors, positioning, and effects.
Export your video
Download your video with subtitles baked in. Share anywhere — the subs are part of the video.
Ready to add subtitles?
Drop your video above and get started in seconds. No account needed.
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