Turn a photo or AI-generated image into a dithered, low-colour, retro look and save it as a PNG — entirely in your browser. Recreate the texture of old black-and-white Macs, the Game Boy, newspapers and early-web GIFs, where shades were faked from very few colours, without opening a heavy image editor. Dithering works by rounding each pixel to a fixed number of tones (levels) and scattering the rounding error as a pattern of dots so your eye blends them back into smooth shading. Choose between two methods: Floyd–Steinberg (error diffusion) spreads the rounding error into neighbouring pixels for an organic, photo-friendly dither, while ordered (Bayer 4×4 / 8×8) dithering uses a fixed threshold map for an even, retro-game cross-hatch. Switch between 1-bit mode, which draws using just an ink and a paper colour, and colour mode, which quantises RGB to a low palette. Use levels per channel (2–6) to control how few tones are used, and pixel size (1–8) to enlarge each dot for a chunkier retro feel. Pick any ink and paper colours — so you can do classic black-on-white, a Game Boy-style green, or any two-tone scheme. The preview is scaled to fit your screen, but the saved PNG is exported at the original pixel size. Load images by dropping, clicking to choose, or pasting from the clipboard. All processing happens in your browser — the image is never sent to any server or API, so it's safe to use even where uploading files is not allowed.