True on-device pixelation
The pixelator uses the Canvas API to downscale and upscale regions locally. Your image is never transmitted to a server.
Image pixelator
mosaic any photo, free in your browser
RedactPix is a free image pixelator that runs entirely on your device. Drop in a photo, draw boxes over the areas you want pixelated, and download a flattened PNG. No upload, no sign-up, no watermark.
Drop image here or paste a screenshot
JPG · PNG · WEBP — up to 20 MB · No upload, no account
- No upload
- No account
- Local AI scan
- Free
Why use RedactPix to image pixelator?
Batch pixelate with auto-detect
Click Scan to auto-detect faces and sensitive text. RedactPix draws pixelation boxes over every match — review, adjust, and export in seconds.
No watermark, no account, no limit
Free for unlimited use. Export full-resolution PNGs with no watermark. No email, no registration, no tracking.
How to image pixelator — step by step
From raw image to safely redacted file in four steps.
Step 01
Drop in your image
Upload, drag, or paste. JPG, PNG, and WEBP up to 20 MB are supported.
Step 02
Draw pixelation boxes
Drag over any area to pixelate. Or click Scan for AI-assisted detection of faces and private text.
Step 03
Adjust block size
Use the slider to change pixel block dimensions — from fine grain to large chunky squares.
Step 04
Download
Export a clean, flattened PNG. No watermark, metadata stripped.
Frequently asked questions
Is RedactPix image pixelator really free?
Yes. The pixelator is completely free with no account, no watermark, and no usage limits. It runs in your browser and does not upload images.
Can I use the pixelator on my phone?
Yes. RedactPix works on mobile browsers (iOS Safari, Android Chrome). The pixelator is fully responsive and touch-friendly.
Does the pixelator support batch processing?
Currently, you process one image at a time. For multiple images, just open a new editor session for each.