BSbasedsubtitles
Open sourceGet started
Free · No sign-up · Open source

Subtitles that run
in your browser

Drop a video. Create AI subtitles on your device. Edit every word, make it your own, and export.

100% localVideo stays on device
Works offlineOnce models are ready
Powered by AIWhisper speech models

Drop a video here

MP4, MOV, WebM — processed locally in your browser

or drag & drop
Style each subtitle and see the result over your video.
MADE FOR CREATORS, BY A CREATORVLAD
Features

Everything you need,
nothing you don’t.

Powerful AI features, a clean interface, and less effort.
Create better subtitles, faster.

AI Subtitle Generation

Whisper AI turns speech into text, directly in your browser. No cloud processing.

WebGPU accelerated

Smart Face Tracking

Subtitles follow the speaker. Face detection keeps text clear of the face automatically.

Split Subtitle Mode

Place subtitles above and below the speaker, or left and right, with face tracking.

Background Removal

Remove or blur the background with AI. Your video stays on your device.

25+ Fonts & Custom Styles

Choose colors, shadows, emphasis effects, and word-by-word highlighting.

100+ Languages

Whisper supports speech in over 100 languages, ready to select in the editor.

Export with Baked-in Subs

Download your video with subtitles as part of the picture, or save an SRT file.

Works Offline

Download the app and models once. Then use the cached tools without a connection.

Free & Built for Speed

No account or payment needed. Use your device’s GPU for fast, local processing.

Your browser is
the entire studio.

The AI models download once. Then your browser does the work with WebGPU and WebAssembly. Your video files stay on your machine.

No video uploads

Your video is processed here, on your own device.

Private by design

Speech recognition runs in your browser, without sending your audio away.

Your device does the work

WebGPU and WebAssembly run AI on your own hardware.

You control your files

Edit in this session, then download the result when you are ready.

How it works

Three steps. That’s it.

From your first word to your final video, all in one place.

01

Drop your video

Drag a video file into the browser. MP4, MOV, or WebM. Your video stays on your device.

02

Generate subtitles

Whisper AI transcribes your audio locally. Edit words, fonts, colors, position, and effects.

03

Export your video

Download your video with subtitles baked in. Share anywhere. The subs are part of the video.

No sign-up. Yours to create.

Ready to add subtitles?

Drop your video above and get started.
No account needed.

Start adding subtitles