Blur Faces and Other Parts of a Video
Drop a video, drag a box over what should not be seen, and pick blur, pixelate or a black box. Each area can apply to the whole video or only to a stretch of it. The video is processed on your device and nothing is uploaded.
How to use it
- Drop a video.
- Add an area and drag its corners over the face, plate or text.
- Choose the effect and strength, and a time range if it should not cover the whole video.
- Click Start and download the video.
Frequently asked questions
Does the blur follow a moving face?
No. Every area stays where you put it. For something that moves, make several areas with time ranges, or use a wider area.
Can a blur be undone?
A light blur sometimes can, at least partly. The strong settings average the area down to a few blocks, which removes the detail for good; the black box hides it completely. Use those for faces, plates and text.
Does the video quality change?
The video is re-encoded once, so there is a small generation loss everywhere, not just in the areas. The sound is copied unchanged.
Is there a file size limit?
No fixed limit. The video is read in small slices and the result is streamed to your disk, so even multi-gigabyte files work without filling up memory.
Is my video uploaded to a server?
No. The file is read and written inside your browser tab using WebCodecs — nothing is uploaded, there is no account and no watermark. Once loaded, the page also works offline.