Blur every frame of a video, or just drag a box over the part that needs hiding - a face, a licence plate, a house number, a name on a screen. Pixelate instead of blur if you prefer that look. Nothing is uploaded: the video is read, blurred and written back out privately on your own device.
or click to select a file
Works with MP4, MOV, WebM and MKV
🔒 Your files never leave your device - 100% private & secure
Drop a video into the box above or click to browse. MP4, MOV, MKV and WebM all work. The first frame appears on the stage so you can see what you are working with.
Pick Whole video to blur every pixel, or Selected area and drag a box over the face, plate or text you want hidden. Drag the corners to resize the box.
Choose Light, Medium, Strong or Maximum, and switch to Pixelate if you want blocks rather than a smudge. The preview updates as you go, so you can check it is unreadable before committing.
Click Blur Video, then download the finished file. The audio is carried over untouched wherever the output format allows it.
Most footage people share was never framed with privacy in mind. A clip of a dog in the front garden has the house number in it. A dashcam recording that proves what happened also records the car in front, plate and all. A screen recording of a bug ends up carrying a customer's email address, and a video of a school play has thirty other people's children in it. None of that is a reason not to share the video - it is a reason to hide one rectangle of it first.
That is what this tool is for. Switch to Selected area, drag a box over the thing you would rather not publish, and only those pixels are destroyed. Everything outside the box is left exactly as it was, so the video still reads as the video: the faces you meant to show stay sharp, the action stays clear, and the one detail that should not be there is gone. Blurring a face or a plate before a clip goes to a group chat, a claims adjuster, a court bundle or a social feed takes about a minute, and once it is baked into the file it travels with it.
There is a real difference between blur and pixelation, and it is worth choosing on purpose. A strong blur reads as softer and more natural, which usually suits a face. Pixelation reads as deliberate - the blocks say "this was hidden on purpose", which is often what you want for a plate, an address or a document on screen. Either way, pick a strength that actually destroys the detail: at Light a licence plate can still be legible when someone pauses and zooms, which is exactly the moment your blur has to hold. The preview shows the real effect at the real strength, so check it there rather than hoping.
All of this runs on your device. The video is decoded, redrawn frame by frame with the blur composited in, and re-encoded using WebAssembly and WebCodecs in your own browser - it is never uploaded to a server, and no copy of it exists anywhere but your machine. For footage you are blurring precisely because it contains something private, that matters more than usual: a tool that has to receive your unblurred video in order to blur it has already had the thing you were trying to protect. There is no account, no watermark, no queue and no file size limit beyond your device's own memory.
Load the video, choose Selected area, then drag a box on the preview around the part you want blurred and resize it with the corner handles. Only the pixels inside that box are blurred; the rest of the frame is untouched. Set the strength, check the preview, and click Blur Video.
Switch to Selected area and drag the box over the face, leaving a little room around it. Strong or Maximum is the sensible choice for a face - a light blur can still leave someone recognisable. The box covers the same part of the frame for the whole clip, so it works best when the person stays roughly in one place; if they move around a lot, either make the box large enough to cover everywhere they go or blur the whole video instead.
No, and it is worth being clear about that. There is no face detection and no tracking here: the box you drag is fixed in place for the entire clip and does not follow anyone around. That is perfect for a static subject - a parked car, a sign, a name on a screen, someone sitting still - and wrong for a subject that walks across the frame. For a moving subject, draw a box big enough to cover their whole path, or blur the whole video.
Choose Selected area, drag a box over the plate, and turn the strength up to Strong or Maximum. Plates are small and high contrast, so a weak blur can still be read by anyone who pauses and zooms in. Pixelate works well here too - the blocks make it obvious the plate was hidden deliberately. If the car is moving through the shot, size the box to cover the whole path it takes.
Anything you can draw a rectangle around can be blurred: a house number, a street sign, a phone screen, a document on a desk, a tattoo, a logo. Pick Selected area, put the box over it, choose blur or pixelate, and set the strength. If several separate things need hiding at once, run the video through the tool more than once - each pass adds another blurred area to the file.
Two ways. Blur the finished file again with the box over the second face, then again for the third - each pass keeps the blurring already applied. Or, if the people are grouped together or there are a lot of them, blur the whole video, which hides every face in one go at the cost of the rest of the picture.
This page works in Safari on an iPhone or iPad, so there is no app to install. Tap Select Video, pick a clip from your camera roll or Files, drag the box with your finger, and save the blurred result back to Files or Photos. Long videos are slower on a phone than on a laptop, so trim to the part you actually need first if you can.
Yes. Switch the Effect option from Blur to Pixelate and the selected area - or the whole frame - is rebuilt from large blocks instead of being smoothed. The strength setting controls the block size. Pixelation is the more obviously deliberate look, which is why it is the usual choice for plates, addresses and anything on a screen.
Not from the file you download. The blurred pixels are drawn into every frame and then re-encoded, so the original detail is genuinely gone rather than hidden behind a layer someone could peel off. Your source file is left untouched on your device, so keep it if you might need the unblurred version.
No. Every step runs in your browser using WebAssembly and WebCodecs - the file is read from disk, processed in memory and written back out locally. Nothing is sent to a server, there is no account, and no copy of your video exists anywhere but your own device.