Blur the faces in a video without uploading it.
2 files freeNo cardNothing uploaded
It is not a blur
A blur averages neighbouring pixels and keeps the face in the file, smeared. This replaces the pixels. Why that matters.
It holds through the turns
Detection alone drops out at steep angles and in shadow. Tracking fills the gaps, and where it cannot, it covers the whole head rather than guessing.
It checks its own work
The finished file is decoded and read back frame by frame. Anything the first pass missed is covered again, wider, before you ever see it.
How it goes
- 01
Drop the video in
MP4, MOV or WebM, at whatever resolution your camera produced. Nothing is sent anywhere when you do this — the browser is simply opening a local file.
- 02
Every face is found and covered
On your own hardware, with the same video engine your camera app uses. Each face is tracked so the cover moves with it rather than being pinned to a spot on the screen.
- 03
The result is checked again
The written file is decoded and re-read frame by frame by a stricter pass. Anything it finds is covered again, wider, and anything it cannot clear is shown to you with the timestamps.
- 04
Download it, or post it
Save it, or send it straight to TikTok, Instagram, YouTube and Facebook with one caption. Even then it goes from your browser to the platform directly and never passes through us.
What it takes, and what it gives back
- Formats in
- MP4, MOV, WebM — anything your browser can decode.
- Resolution out
- The one you gave it. No downscale and no watermark, including on the free files.
- Covers
- Frost, bar or streak. All three destroy the pixels underneath; none of them is a blur.
- Where it runs
- Chrome, Edge, or Safari 16.4 and later — on a laptop or a phone. It works with the network off.
- What we receive
- Nothing. There is no server in the path, so there is nothing to leak, breach or hand over.
- Cost
- The first files are free, no card. After that a plan, or a one-off payment.
Why it covers rather than blurs
Blurring is a weighted average of neighbouring pixels, which means the face is still present in the file in a spread-out form. The transform is close to invertible, and there are published attacks that walk it backwards far enough to recognise somebody — and a second kind of attack that does not need to reverse anything at all, only to compare your blurred face against a short list of candidates.
Replacing the pixels outright leaves nothing to reverse and nothing to compare. Which is why this ships coarse covers and solid bars, and will not ship a blur, whatever the address of this page says. The long version, with the maths.
Questions
Is the video uploaded to a server?
No. The file is opened, decoded, covered and re-encoded inside the browser tab, using the same video hardware your camera app uses. There is no upload step anywhere in the process — you can disconnect from the network before you start and it finishes exactly the same, which is the easiest way to check the claim rather than take our word for it.
Does it work on a phone?
Yes, in a recent Chrome or Edge, or Safari 16.4 and later. A long clip takes longer on a phone than on a laptop because it is doing real work on real hardware, and the screen gives you an estimate before you commit to it rather than after.
What happens when someone turns away from the camera?
The cover stays on. A detector loses a face at steep angles, in shadow and during fast movement, so tracking fills the gaps between detections and extrapolates briefly past the end of one. Where detection has been lost for too long to extrapolate honestly, it fails closed — it covers the whole head rather than guessing where the eyes are.
How do I know it did not miss a frame?
Because it checked. After the file is written, it is decoded again and read back frame by frame by a second pass that is stricter than the first, and anything it finds is covered again, wider. If something still cannot be cleared, you are told which moments to look at instead of finding out after you posted it.
What formats and resolutions does it take?
MP4, MOV and WebM in, at the resolution you gave it. There is no downscale to 720p and no watermark, on the free files either — what a plan changes is how many files you may make and whether you can post them straight to your accounts, not the quality of the covering.
Can I do several videos at once?
Yes. Drop in a batch and they run one after another with a single set of settings, and anything questionable in any of them is flagged at the end for a look.
Cover a video now.
It runs in this browser. Nothing is installed, nothing is uploaded, and the first files are free.
2 files freeNo cardNothing uploaded