No. Everything runs in this browser tab on your own device. Engines are downloaded once and cached, but your files never leave your computer.

Are my files uploaded?

No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.

Is it free? Are there limits or watermarks?

Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.

Does it work offline?

Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

Home / Image / Pixel Art & Dither

Pixel Art & Dither

Pixelate photos with retro palettes (Game Boy, CGA, PICO-8, NES, C64) and Floyd-Steinberg, Atkinson or Bayer dithering.

Free, no uploads, no sign-up. Runs 100% in your browser.

How Pixel Art & Dither works

The image is scaled down to blocks, then every block is mapped to the closest colour in the chosen palette, either a classic console palette or an automatic one built with median-cut. Error-diffusion or ordered dithering keeps gradients smooth with few colours.

Input: JPG, PNG, WEBP, AVIF, TIFF. Output: PNG, JPG, WEBP.

How to use Pixel Art & Dither

Drop an image.
Set the pixel size and pick a palette.
Choose a dithering method.
Download at original size, or at 1 pixel per block for game sprites.

Tips

Save as PNG; JPG blurs hard pixel edges.
Atkinson dithering gives the classic early Mac look.

Pixel Art & Dither FAQ

Is my file uploaded?: No. Everything runs in this browser tab on your own device. Engines are downloaded once and cached, but your files never leave your computer.
Are my files uploaded?: No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
Is it free? Are there limits or watermarks?: Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
Does it work offline?: Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

Related tools

Halftone Generator: Turn photos into dot, line, square or CMYK halftone art with screen angle, ink and paper colours.
Image Resizer: Resize to exact pixels, percentages or social presets.
GIF Maker: Turn a set of images into an animated GIF.
Image Compressor: Shrink images in bulk with quality and width controls and live savings.