• 13 algorithms

    9 free · 4 Pro

  • 100% private

    Never leaves your browser

  • No signup required

    Start dithering instantly

  • Works offline

    After first load

Quick Start Guide

A focused workflow built for artists, game developers, and print makers — no learning curve.

  1. 1

    Upload your image

    Use the upload area above — drag & drop, click Upload image, or paste. JPG, PNG, WebP up to 10 MB.

  2. 2

    Choose Style

    Pick a Quick Preset or select from 13 professional dithering algorithms (9 free, 4 Pro).

  3. 3

    Auto-Tune

    Click ✨ Auto-Tune for instant great results, or fine-tune manually.

  4. 4

    Compare & Zoom

    Drag the A/B divider to compare with original. Pinch or scroll to zoom.

  5. 5

    Download

    Free low-res or HQ export as PNG, JPEG, or WebP.

Pricing

Free to start. Pro when you need full resolution.

Dither online for free — upgrade for HQ exports, Pro algorithms, and higher upload limits.

Free

$0/forever

  • 9 dithering algorithms
  • 50% resolution exports
  • 10 MB upload limit
  • No account required
Open editor

Most popular

Pro

$8/mo

or $80/yr

  • All 13 algorithms
  • Full-resolution HQ exports
  • 15 MB uploads · saved presets
  • Custom palettes
See Pro details

See it in action

Click any image to view its full dithering effect up close.

Portrait photo with Atkinson dithering applied showing retro Mac aesthetic with high contrast black and white halftone pattern
Atkinson Dither — Portrait
City lights photo with Two-Row Sierra dithering algorithm showing distinctive diagonal patterns and smooth tonal gradients in urban night scene
Two-Row Sierra
Portrait photo with diffusion dots dithering creating authentic newspaper halftone bitmap effect
Diffusion Dots
Sunset landscape with Floyd-Steinberg error diffusion dithering showing smooth gradient transitions and natural color reproduction
Error Diffusion
Ripley from Alien with Floyd-Steinberg error diffusion dithering showing smooth gradient transitions and natural color reproduction
Error Diffusion
Portrait with Sierra dithering algorithm showing detailed error diffusion and smooth tonal transitions
Sierra Dither
Vaporwave sunset photo with Error Diffusion dithering showing highest quality minimal artifacts and smooth gradients
Error Diffusion
Still life photo with Jarvis-Judice-Ninke dithering showing smooth tonal transitions and detailed error diffusion
Jarvis-Judice-Ninke
Still life photo with Ordered Bayer matrix dithering showing highest quality minimal artifacts and smooth gradients
Ordered Bayer Matrix

Why Choose This Dithering Tool?

Professional dithering without the desktop install — privacy-first, browser-native, built for real creative workflows.

  • 11 Professional Algorithms:

    Floyd-Steinberg, Atkinson (retro Mac), Ordered Bayer matrix, Blue Noise (Void-and-Cluster), Sierra, Two-Row Sierra, Burkes, Stucki, Jarvis-Judice-Ninke, Sierra Lite, and Diffusion Dots bitmap style

  • Auto-Tune:

    One click analyses your image and automatically selects the best algorithm and settings — no guesswork needed

  • Quick Presets:

    One-click starting points with live thumbnail previews generated from your actual image, so you can see the result before applying

  • 7 Curated Retro Palettes:

    Authentic Game Boy, Commodore 64, CGA, NES (16 colors), Game Boy Pocket, Sepia, and Mac Plus palettes — or auto-extract an optimal palette from your image

  • A/B Comparison:

    Drag a divider across the canvas to compare the original and dithered result side-by-side at any zoom level

  • Complete Privacy:

    All processing happens in your browser. Your images never leave your device and are never uploaded to any server

  • Advanced Controls:

    Tabbed inspector with adjustable palette size (2–64 colors), intensity (0–300%), threshold (0–255) with histogram, pattern size (1–8×), brightness, contrast, and saturation

  • Professional Quality:

    LAB color space for perceptual color matching, smart median-cut palette extraction, float-precision error diffusion, and a Web Worker so the UI stays smooth during heavy processing

  • Export Anywhere:

    Download as PNG, JPEG, or WebP. Free low-res (50%) or paid full-resolution HQ export

  • Mobile-Friendly:

    Fully responsive — works on phones and tablets with touch, pinch-to-zoom, and all controls accessible

  • Works Offline:

    After the initial load, the application functions completely offline

Start dithering — free, no signup

Open the editor, drop an image, and export a dithered result in under two minutes. Your pixels never leave your device.

Open Diffused EditorCompare Free vs Pro