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LocalMedia Tools

Redact Image Online

Draw solid black boxes over faces, ID numbers or addresses to permanently erase them, then export a flattened PNG — all in your browser.

Runs in your browser — your files are not uploaded

100% local — your images are never uploaded

Select an image

Drop your file here

Quick answer

What it does
Black out faces, ID numbers or addresses in a photo by drawing solid boxes that destroy the pixels underneath, all in your browser, nothing uploaded.
Your files
Never uploaded — processed on your device
Price
Free, no account
Formats
JPG, PNG, WEBP → PNG

Permanently hide sensitive parts of a photo

Screenshots and photos often expose things you never meant to share: an ID number, a face, a home address, an email or a card number. This tool lets you drag solid black boxes over those areas on a canvas. Unlike a movable sticker or a reversible blur, a solid block actually overwrites the pixels underneath, so there is nothing left to recover. The result is exported as a flattened PNG with the redaction baked in. Everything runs directly in your browser, so your original image is never uploaded to a server.

Why use this redaction tool

How to redact an image

  1. Add your image Drag and drop a JPG, PNG or WebP file, or click to select one from your device.
  2. Cover the sensitive areas Drag a box over each face, ID number or address you want to hide. Add as many boxes as you need.
  3. Flatten and download Export the image as a PNG. The black boxes are baked into the pixels, so what is covered is gone for good.

Your images stay private

All processing happens directly in your browser on your own device using the Canvas API, and your image is never uploaded to any server. We collect only anonymous, aggregated usage statistics (such as how often the tool is used or succeeds) to improve it — never your images, filenames, or any personal data.

Verify it yourself: Open your browser DevTools → Network tab and run the tool: no request ever carries your file. Everything happens on your device.

FAQ

Is the redaction really permanent?
Yes. A solid black box overwrites the pixels beneath it, and the tool exports a flattened PNG. The covered content is destroyed, not hidden on a layer, so there is nothing left to recover from the exported file.
Are my images uploaded anywhere?
No. The whole process runs in your browser, so your image never leaves your device.
Why not just draw a black shape in a normal photo editor?
Many editors keep the shape as a movable object or store the original on a hidden layer, so someone can drag the box away or open the source file and see what was underneath. Here the pixels are overwritten and flattened into a single PNG.
Should I use a solid box or blur?
Solid black boxes are the safest choice because they completely destroy the covered pixels. Blur can sometimes be partially reversed, especially over text, so use it only when a softer look matters more than absolute security.
Why is the output always a PNG?
PNG is lossless and flattens everything into one image, so the redaction is baked in cleanly without compression artifacts leaking around the edges of a box.
Can I redact several areas in one image?
Yes. Draw as many boxes as you need over every face, number or line of text before you export.
Does exporting also remove hidden metadata?
Re-encoding the image through the canvas drops embedded EXIF data such as GPS location, so the PNG you download does not carry that hidden information.