Image redactor. Baked into the pixels.

How to use the Image Redactor

The Image Redactor hides parts of a picture, such as faces, names or account numbers, before you share it. You drag boxes over the parts to hide, and each box is blurred, pixelated or filled with a solid color. On export the whole image is redrawn into a new flat PNG, so the hidden areas are gone from the file, not just covered.

Step by step

1. 1
   Load an image

   Drop a JPG, PNG, WebP or GIF on the card that says Drop an image here, or click it to pick a file. On a keyboard, focus the card and press Enter or Space. The editor opens with your image. The preview may be scaled down to fit the page, but the work is done at the image's original pixel size.

2. 2
   Pick a redaction effect

   Under Redaction effect, choose Blur, Pixelate or Black-out. Blur is selected when the editor opens. The effect you pick applies to the next box you draw; boxes already drawn keep the effect they were made with.

3. 3
   Set the strength or the color

   For Blur and Pixelate, drag the Strength slider between 4 and 40. The default is 14. For Blur it is the blur radius in pixels, and for Pixelate it is the width of each block in pixels. For Black-out the slider is replaced by Block color, which starts as a near black navy.

4. 4
   Drag boxes over what you want to hide

   Click and drag on the image to draw a box. When you let go, the effect is applied inside it. A box less than 6 image pixels wide or tall is ignored, so a stray click adds nothing. Draw as many boxes as you need, changing the effect between them.

5. 5
   Fix mistakes

   The Regions list shows every box with its effect and size. Press Remove on one box, Undo to drop the last box, or Clear to drop them all. Load another image starts over with a new file and discards all boxes.

6. 6
   Download the redacted PNG

   Press Download redacted PNG. The file is saved as redacted.png at the same pixel size as your original. The button stays disabled until you have drawn at least one box.

Reading the result

• The line in the export bar shows the image size and the number of boxes, for example 1920×1080 px · 3 redactions.
• Each entry in Regions shows the effect, as blur, pixelate or block (for Black-out), and the box size in image pixels, which can be larger than it looks on screen.
• The preview on screen is exactly what goes into the file. If you can still read a name in the preview, it will be readable in the download too.

Tips and common mistakes

• For account numbers, passwords and ID numbers, use Black-out or Pixelate at a high strength. A light blur on large text can still hint at the shapes.
• Draw the box a little larger than the text. Blur softens only inside the box, so letters that touch the edge can stay readable.
• Changing the effect or strength does not restyle boxes you already drew. Remove a box and draw it again to change it.
• The download is always a PNG, which can be much larger than a JPG of a photo. Convert it afterward if file size matters.
• An animated GIF loads as a single still frame, and the export has no animation.

Privacy and limits

The image is opened and redrawn by your own browser. It is not uploaded, nothing is saved, and the page keeps working offline once it has loaded. The exported PNG is a new image drawn from the canvas, so it does not carry the original file's metadata.

Back to the tool

Everything a redactor should do.

• Blur faces and names in screenshots before you share them publicly.
• Pixelate account numbers, passwords or any text you need to hide, with an adjustable block size.
• Black out entire regions with a solid color block of your choice for maximum coverage.
• Stack multiple regions in one image, each keeping the effect it was drawn with; undo or remove any of them individually.
• Export a flat, redacted PNG where the hidden areas are baked into the pixels, not just covered by a removable layer.
• Process images privately: nothing is uploaded, no account is needed, and it keeps working offline.

Frequently asked questions.

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