Pixel Dock
image tools · nothing leaves your browser

Blur & redact

Hide faces, names, addresses, or any sensitive detail in a photo. Drag boxes over the parts you want gone, and they're permanently blacked out or pixelated — burned into the image and stripped of metadata when you save. Everything happens in your browser; the photo is never uploaded.

Drop an image here or click to choose · JPEG, PNG, or WebP

Drag on the image to add a redaction box. Add as many as you need.

How this protects you: each box is burned directly into the image's pixels and the file is re-saved from scratch, so the hidden areas are genuinely gone from the download and no metadata comes with it. For the most sensitive details, the black box is the safest choice.
Download redacted image

What "redact" really means here

Plenty of tools let you draw a black rectangle on a photo — but if that rectangle is just laid on top, the original can sometimes still be recovered from the file. That's a real danger with sensitive information. This tool avoids it: when you save, the image is redrawn from scratch with your boxes burned permanently into the pixels, and the result is encoded as a brand-new file. There is no separate layer holding the hidden content, because the hidden content no longer exists in the output.

Black box vs. pixelate

A black box replaces the area with solid colour — the underlying pixels are completely removed, which is the safest option for anything truly sensitive like a name, address, or account number. Pixelate replaces the area with a coarse mosaic, averaging each block down to a single colour so the detail is destroyed; it's a good choice for obscuring a face while keeping the photo looking natural. Both are one-way in the saved file. If in doubt, use the black box.

Metadata goes too

Saving the redacted image also removes any hidden metadata the original carried, such as the GPS location where a photo was taken. That matters here more than anywhere: it would defeat the purpose to carefully hide a face while leaving the exact coordinates of where the picture was taken buried in the file. Re-encoding on your device clears both.

It stays on your device

Redaction is exactly the kind of task you should never do by uploading to a stranger's server. Everything here runs in your browser — the sensitive image never leaves your machine.