Put a grid
on every face.
CLOAK tracks faces across your video and overlays a precise grid. No servers, no uploads — everything happens right here in your browser.
No install · No sign-up · No watermark
Everything you need, nothing you don't
A desktop-grade processing engine, rebuilt for the browser.
Automatic face tracking
Faces are tracked and smoothed across frames — a rock-steady grid, even with multiple faces.
GPU accelerated
Detection and encoding are accelerated with modern browser tech like WebGPU and WebCodecs.
Total privacy
Your video never leaves the browser. No servers, no storage, no tracking.
Original quality
Only the grid area is touched. Resolution and frame rate stay exactly as they were.
4-second padding
Pad short clips with black frames to hit a target length — in front of the clip or after it, your choice.
Fine-grained control
Cells, thickness, color, opacity, shape, tilt — tune everything with a live preview.
Three steps. That's it.
Drop a video
Drag in videos or images. Multiple files at once are fine.
Tune the grid
Shape the grid exactly how you want with the live preview.
Render & save
Encoding finishes in the browser — download instantly.
Your footage stays yours
CLOAK has no upload server. Your files never leave this page, and everything vanishes the moment you close the tab. That's why it's safe even for sensitive footage.
- 0 bytes sent to any server — verify it in your network tab
- No account, no sign-in
- Results are saved only to your device
Questions?
Privacy, supported formats, browser compatibility — we've collected the answers.
Grid your first video now
Nothing to install, nothing to sign up for. All you need is a video.
Open the Studio