Blur Video Region Online
Protect privacy by blurring specific areas of your video clip. Processes entirely in your browser to guarantee 100% security.
If you only need to hide one region, opening a full timeline editor can feel heavier than the job itself. You may need to cover a plate before sharing a driving clip, blur a name tag in a work recording, or hide a password that appears on screen for the whole take.
GrepCut keeps that workflow direct. You position one rectangular blur area on the preview, choose how strong the blur should be, and export a new MP4 with the edited video pixels.
Your file stays on your device while the tool works in the browser. That matters when the thing you are hiding is sensitive before the edit, not just after it.
A privacy edit has a timing problem: the original video is sensitive before the blur is applied. If you upload the raw clip to a remote editor first, the unblurred version may already be outside your control.
With this browser-side tool, the frame processing happens locally. You can prepare a shareable version without sending the original file to GrepCut servers.
For stronger privacy, review the exported video before publishing it. A blur over the face or plate helps, but your clip may still reveal identity through voices, names spoken aloud, background signs, reflections, uniforms, or location clues.
Can you blur only part of a video?
Yes. You can place one rectangular blur box over the area you want to hide, adjust its size and strength, then export the edited MP4.
Will your video be uploaded while you blur the region?
No. The processing runs locally in your browser, so your original file is not uploaded to GrepCut servers.
Can you blur a moving face or license plate?
This tool uses a static box, so it works best when the face, plate, or private detail stays in one area. If the subject moves, open [GrepCut Studio](/) and use tracking instead.
Can you blur multiple regions in the same video?
This landing page tool applies one rectangular blur region. If you need several blur zones, separate masks, or tracked objects, use [GrepCut Studio](/).
Does the blur tool remove or change your audio?
No. The tool changes the video pixels in the selected region and preserves the audio track as-is.
What video formats can you load?
You can load common video files such as MP4, MOV, WebM, and MKV. The processed result is exported as an MP4.
How strong should the blur be?
Set the blur high enough that the face, plate, document, or screen text cannot be read in the preview. For highly sensitive footage, review the exported MP4 before you share it.
Is blur always enough for privacy?
Blur can hide the selected pixels, but your video may still reveal information through voices, names, reflections, signs, GPS-like scenery, or other context. Check the whole frame before publishing.