Home / Guides / Blur faces in videoBlur faces in a video without the cover slipping
Blurring a face in a photo is easy. Video is where most tools fall apart: the blur lags a frame behind, the face drifts out from under it, and a single exposed frame undoes the whole edit. HideFace detects every face and tracks it across every frame, so the cover stays locked on as people move and the camera shakes.
Drop in a clip, let HideFace find and follow each face, pick a style, and export a clean copy. A minute of footage that used to mean keyframing masks by hand is done in a couple of clicks, and nothing you import ever leaves your computer.
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See it in action
Before
After
Every face found and covered, and it stays covered as the shot moves
Key facts
Tracks every face frame by frame, so the cover does not drift or lag
Automatic detection, so there is no manual keyframing
Free video exports up to 15 seconds at 720p; Pro removes the limit up to 4K
Pro uses NVIDIA, Intel, or AMD hardware encoders, with a CPU fallback
100% local: your footage is never uploaded and works offline
How to blur faces in a video
Open a clip, or drop in a whole folder of clips.
HideFace detects every face and starts tracking it across frames.
Pick a style, or keep the people you want and cover everyone else.
Export a clean copy. GPU-accelerated on Pro; nothing is uploaded.
What makes video different
Frame-by-frame tracking means a face cannot slip out from under the cover mid-clip.
Everything stays on your machine, so sensitive footage never touches a server.
Automatic detection turns a 40-minute manual mask job into seconds.
Frequently asked questions
Does the blur follow faces as they move? Yes. HideFace tracks each detected face frame by frame, so it stays covered while people move and the camera shakes, not just in the first frame.
How long a clip can I export on the free plan? The free plan exports video up to 15 seconds at 720p. Pro removes the time limit and exports at full resolution up to 4K.
Is it faster with a graphics card? Pro uses your NVIDIA, Intel, or AMD hardware encoder when one is available, and falls back to the CPU otherwise.
Can I keep one person visible and cover everyone else? Yes. You can cover everyone, cover only the people you pick, or keep a chosen few and cover the rest.
What video formats does it read? HideFace reads common video formats and exports a standard MP4, all on your device with no upload step.
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