Flouter les Visages dans une Vidéo Gratuit — Censure Auto (Sans Upload)
Détecte et floute automatiquement les visages dans une vidéo avec MediaPipe. Idéal pour journalistes, avocats et créateurs qui doivent anonymiser des séquences. Sans upload.
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Taille max: ~2 Go (selon mémoire)
Comment utiliser — Flouter les Visages dans une Vidéo Gratuit — Censure Auto (Sans Upload)
Load your video
Any MP4/MOV/WebM/MKV. Loads locally — nothing uploaded.
Adjust strength and padding
Higher blur for stronger anonymisation; more padding for extra margin around each face (helps when the detector’s box is tight).
Process and download
Face detection and blurring run frame-by-frame in your browser. Output is WebM with audio preserved.
When to blur faces in a video
- Journalists anonymising witnesses, bystanders, or minors before publishing.
- Legal and HR videos where only specific parties should be identifiable.
- Content creators protecting the privacy of people who appear incidentally in B-roll.
Supported formats & limits
| Input containers | MP4, MOV, WebM, MKV, AVI, FLV, WMV, M4V |
|---|---|
| Input codecs | H.264, H.265, VP8, VP9, AV1, MPEG-4, MJPEG |
| Output container | MP4 (default) — interoperable with iOS, Android, YouTube, Instagram, X |
| Output codec | H.264 video + AAC audio |
| Max file size | Up to ~2 GB (limited by browser memory) |
| Max duration | No hard limit — depends on file size |
| Cost | Free for any use. No signup. No watermark. |
Why blur faces locally
- Upload-based anonymisation defeats the purpose — your sensitive footage travels to a third-party server. Here it never leaves the browser.
- MediaPipe BlazeFace detects multiple faces per frame. Soft elliptical blur avoids the obvious "rectangle over face" look.
- Adjustable blur strength and padding for the level of anonymity you need.
Questions Fréquentes
How does face blurring work?
The tool runs Google’s MediaPipe BlazeFace detector on every frame of your video, then paints a gaussian blur over each detected face region. Both detection and rendering happen in your browser — no upload.
Will it catch every face?
BlazeFace is tuned for upright, reasonably-lit faces within ~2 metres of the camera. It may miss profile views, heavy occlusion, very small faces, or extreme angles. For high-stakes anonymisation, preview the output and fall back to manual masking for missed frames.
Does it work on license plates?
Not in this version — the detector is face-specific. A dedicated license-plate model would be a separate tool. If you need to anonymise a plate in a handful of frames, crop that region and blur with a crop + watermark combo.
Why does processing take a while?
Face detection runs per-frame. On an M-series Mac expect roughly real-time (a 2-minute video takes about 2 minutes). Older or low-power hardware can be 2-4× slower. Upload-based tools can appear faster because their queue time is hidden behind an opaque loading bar — but total wall-clock is often similar.
Why is the output WebM, not MP4?
Browsers can encode WebM (VP9 + Opus) natively via MediaRecorder but not MP4. If you need MP4, drop the output into our Video Converter — that step runs locally too.
Does my footage get uploaded?
No. Both the MediaPipe WASM runtime and your video stay in the browser. Open DevTools → Network tab while processing to verify.