FREE BROWSER TOOL
Free Image Blur & Pixelate Tool
Paint to censor — mosaic or gaussian blur over any area, with undo.
- Data never uploads to a server
- Free, no sign-up, no watermark
- Runs offline after loading
Drop an image here, or click to browse — pasting works too.
JPG · PNG · WebP — up to 40MB
Upload an image, then paint over the areas to hide — faces, names, license plates.
How to censor part of an image
- Upload the image — a screenshot, a photo, a document scan.
- Choose mosaic or blur. Mosaic blocks are hardest to reverse; blur looks softer.
- Paint over private areas. Faces, usernames, addresses, license plates — adjust brush size for detail work.
- Download the result. The original file on your device is untouched.
Mosaic or blur — which is safer
Mosaic
Replaces detail with large blocks. For text and numbers it is the strongest option at high strength.
Blur
Keeps shapes readable while hiding detail — good for backgrounds and faces where mosaic looks too harsh.
Safety tip
For truly sensitive data, paint generously around the content — slight edge remnants can still be readable.
Frequently asked questions
How do I censor part of a photo?
Upload, pick mosaic or blur, set brush size and paint over the area — it takes effect as soon as you release.
Mosaic vs gaussian blur?
Mosaic gives the classic pixel-block look; gaussian blur is a soft natural smudge. Mosaic reads as deliberate censoring — either works for faces.
Can I undo a stroke?
Yes — step back with undo, or clear everything and start over.
How do I tune the strength?
Mosaic adjusts block size, blur adjusts radius — both are live-preview sliders.
Are images uploaded?
No — censoring runs locally, which is exactly what private content needs.