Blur faces in video.
Detect every face automatically and keep them blurred as they move. No upload.
Your video stays in this browser tab.
No account, no signup watermark.
Faces stay blurred as they move.
Need face blur across a library?
This tool blurs one video at a time. Cutsio can anonymize faces across your whole library.
Common questions.
How do I blur faces in a video?
Choose a video, click Detect faces, review the detected faces, then export. Every included face is pixelated and tracked across frames.
Can I blur only some faces and leave others visible?
Yes. After detection you get one thumbnail per face — tap any face to exclude it. Only the faces you keep selected are blurred in the export.
Do blurred faces stay blurred when people move?
Yes. Each face is tracked across frames with interpolation between detections, so the blur follows faces as they move.
Is my video uploaded anywhere?
No. Face detection, blur compositing, and MP4 encoding run in your browser. Your file never touches a server.
Which browsers are supported?
All modern browsers — Chrome, Edge, Safari, and Firefox. Face detection runs on a small on-device model that downloads once, then everything stays local.
What formats are supported?
MP4, MOV, WebM, MKV, and most common formats with a video track. Output is always MP4 (H.264 + AAC).