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Dithering algorithms
Every algorithm trades off speed, sharpness and texture differently. Pick one to learn how it works and try it on your own image.
- Floyd–SteinbergApply Floyd–Steinberg error-diffusion dithering to any image in your browser. Free, instant, no upload. Export 1-bit or retro-palette PNGs.
- AtkinsonConvert images with Atkinson dithering, the algorithm behind the original Apple Macintosh graphics. Free in-browser tool, no sign-up.
- Jarvis–Judice–NinkeDither images with the Jarvis, Judice & Ninke algorithm for smooth, low-artifact gradients. Free browser tool with retro palettes.
- StuckiApply Stucki error-diffusion dithering to photos in your browser. Sharper than Jarvis, smoother than Floyd–Steinberg. Free PNG export.
- BurkesDither images with the Burkes algorithm — a fast, two-row simplification of Stucki. Free, private, runs entirely in your browser.
- SierraApply Sierra (Sierra-3) dithering to your images for smooth, natural texture. Free online dithering tool with Game Boy and PICO-8 palettes.
- Two-Row SierraDither images with the Two-Row Sierra algorithm. A faster Sierra variant with smooth results. Free and private — your image never leaves the browser.
- Sierra LiteTry Sierra Lite, the simplest error-diffusion dithering kernel. Ultra-fast, crisp results. Free browser-based image dithering tool.
- Bayer (Ordered)Create ordered (Bayer matrix) dithering in 2×2, 4×4 or 8×8 patterns. The iconic crosshatch retro look, free in your browser.
- Random NoiseApply random (white noise) dithering to images. Gritty, film-grain style results. Free online tool, no upload required.
- ThresholdConvert any image to pure black and white (or any palette) with a simple threshold — no dithering. Free online tool with brightness and contrast controls.