Upload any photo to pixelate image areas, blur faces, censor private info, or generate retro pixel art. Free, private, no sign-up required.
Pixelating an image means dividing it into a grid of uniform colored blocks, producing a mosaic or retro "pixel art" effect. It is widely used to blur faces, censor private information, create 8-bit style artwork, or add a creative visual effect to any photo. Fast Pixelate Image lets you pixelate images instantly in your browser — no uploads, no accounts, no waiting.
Upload your image by dragging it onto the upload zone or clicking to browse. Adjust the Pixel Size slider to set the block size, preview the result, then click Download. No sign-up required.
No. All image processing happens locally in your browser using the Canvas API. Your images never leave your device and are never sent to any server.
You can upload JPG, PNG, WebP, and GIF files (up to 10 MB). You can download the result as PNG, JPEG, or WebP.
The pixel size (2–64 px) controls how large each colored block is. A smaller value gives a finer mosaic, while a larger value produces a more dramatic, recognizable pixelation effect.
When enabled, visible grid lines are drawn at each pixel block boundary in the exported image. This makes the pixel structure clearly visible — useful for presentations or pixel art projects.