Blur Face
Blur Faces in Video
100% in your browser. Your video never leaves your device.
Why Blur Faces in Videos?
Video footage captures real people in real moments — and that creates real privacy risks. Whether you're recording at a public event, filming street scenes, or sharing a clip from a family gathering, the faces visible in your video can identify individuals without their consent. Blurring faces before you publish is a simple act of digital responsibility. Modern privacy regulations like GDPR in Europe and CCPA in California place legal obligations on anyone who publishes identifiable footage of individuals — especially in commercial or professional contexts.
How It Works: 100% In Your Browser
Unlike cloud video editors that require you to upload your footage to a remote server, this tool processes everything locally using the WebCodecs API and MediaPipe AI — two technologies built directly into your browser. Your video is decoded frame-by-frame on your own device, faces are detected using on-device AI, the blur is applied, and the processed video is assembled — all without a single byte leaving your device. Your footage is never stored, logged, or accessible by anyone other than you.
Works on iPhone, Android, and Desktop
The tool handles the most common recording formats: H.264 MP4 (used by most Android phones, webcams, and screen recorders) and HEVC/H.265 MOV (the default format on iPhone and iPad). If your device or browser doesn't support a particular codec, the tool provides a clear explanation and a simple fix — such as switching iPhone camera settings to Most Compatible to record in H.264.
Just want to blur faces in a photo? Try our Photo Face Blur tool →
Frequently Asked Questions
Learn more about our technology and how we keep your data safe.
No! Our video face blurring tool operates 100% inside your web browser using advanced client-side WebCodecs and MediaPipe AI technology. Your video file never leaves your device and is never uploaded to any remote server or cloud database. Your privacy is completely guaranteed.
This tool supports H.264 MP4 files and H.264-encoded MOV files (common on older iPhones set to Most Compatible mode). HEVC/H.265, VP9, AV1, and WebM files are not supported — the browser's WebCodecs pipeline only decodes H.264. If you are unsure of your file's codec, re-export it as H.264 MP4 using HandBrake or iMovie.
There is no fixed time limit — the practical limit is 500 MB. The entire video is decoded frame-by-frame inside your browser, so very large files may exhaust available memory. A typical 1080p H.264 video at 30 fps sits well within 500 MB for most clips under 10 minutes. For best results, trim long recordings to just the relevant segment before uploading.
Yes! The tool copies the original audio track exactly as-is from your input video to the blurred output video, ensuring that your audio remains intact without any loss of quality.
Yes, completely free with no account required. All processing happens inside your browser — no uploads, no sign-up, and no limit on the number of videos you can process.
Our automatic face detection is powered by a high-performance machine learning model that accurately identifies faces across most lighting conditions and angles. In addition to automatic detection, you can customize the blur intensity and choose between standard blur, pixelation (mosaic), or solid black censor bars.
It depends on your recording settings. iPhones default to HEVC/H.265 (High Efficiency mode), which is not currently supported by this tool. Fix: go to Settings → Camera → Formats → Most Compatible. New recordings will then use H.264 and work perfectly. Videos already recorded in HEVC will need to be re-encoded first — iMovie on Mac or the free app HandBrake can do this.