Ditherit is a simple, free web tool for dithering an image to a palette. Bitgrain has every classic dither algorithm, plus halftone, riso, ASCII and a studio for layout.
Ditherit does one job and does it simply: pick a palette, dither an image, download it. People look for an alternative when they want more algorithms to compare, finer tone control before the dither, or other print looks in the same place.
| Capability | Bitgrain | Ditherit |
|---|---|---|
| Where it runs | In the browser, processed on your device | In the browser |
| Main focus | Print effects, layout and video | Dithering an image to a palette |
| Dither algorithms | Floyd-Steinberg, Atkinson, Sierra, Stucki, Burkes, JJN, Bayer and blue noise | A focused set of common methods |
| Palettes | Retro hardware palettes, or one taken from your photo | Palette based, its core feature |
| Other effects | Halftone, riso, ASCII, grain, crosshatch and more | Dithering only |
| Layout and video | Design studio and video timeline | Export the image and take it elsewhere |
If you just need to dither one image to a palette and download it, Ditherit is quick and simple, and you may not need anything more. Use Bitgrain when you want to compare many algorithms, shape the tone before dithering, or carry the result into a poster, a cover or a video.
Retro hardware palettes like Game Boy, CGA, C64 and PICO-8, print palettes like riso and sepia, and an option that builds a palette from the colours in your own photo.
Yes, on Pro. Every pixel becomes a vector square, so the pattern stays crisp at any size. PNG export is on every plan.
Processing happens on your device, so large photos work as long as your computer can hold them. Full resolution export is on Pro.