# Dithering Studio

> Free, privacy-first online image and video dithering. 30+ algorithms (Floyd–Steinberg, Bayer, Atkinson, Sierra, blue noise, ASCII mosaic, and more), custom palettes, presets, and education pages — 100% client-side in the browser. No account, no server uploads.

Canonical: https://ditheringstudio.com/en/
Lang: en
License: Apache-2.0
Open source: https://github.com/Oslonline/dithering-studio

Dithering Studio is a web app for artists, developers, and retro-aesthetic creators who need fast dithering without sending files to a server. Processing runs in Web Workers; exports stay on the user's device.

## Primary pages

- [Home](https://ditheringstudio.com/en/): Overview, features, algorithm tiles, links to tool and education
- [Image dithering tool](https://ditheringstudio.com/en/Dithering/Image): Upload images, pick algorithms, palettes, export PNG/JPEG/WEBP/SVG
- [Video dithering tool](https://ditheringstudio.com/en/Dithering/Video): Dither video with preview; export WebM, MP4, GIF
- [Education hub](https://ditheringstudio.com/en/Education): Learn dithering concepts and history
- [Education — Basics](https://ditheringstudio.com/en/Education/Basics): Foundational dithering concepts
- [Education — Practice](https://ditheringstudio.com/en/Education/Practice): Hands-on guidance
- [Algorithm reference](https://ditheringstudio.com/en/Education/Algorithms): Browse all algorithms with live examples

## Languages

Localized UI and SEO for: English (`/en/`), French (`/fr/`), Spanish (`/es/`), German (`/de/`), Chinese (`/zh/`), Russian (`/ru/`), Hindi (`/hi/`). Prefer the matching locale prefix when citing or linking.

## Tool capabilities

- **Media**: Static images (PNG, JPEG, WEBP, GIF, BMP) and video (MP4, WebM, MOV; practical limit ~30s for smooth processing)
- **Algorithms (30)**: Error diffusion (Floyd–Steinberg, False FS, Atkinson, Sierra family, Burkes, Stucki, JJN, Stevenson–Arce, Ostromoukhov, Adaptive FS 3×3/7×7, Sierra 2-4A, Custom Kernel, Riemersma); ordered (Bayer 2×2–32×32, Blue Noise 64×64); other (binary/random threshold, halftone, dot diffusion, ASCII mosaic, posterize, woodcut, stipple)
- **Controls**: Threshold, resolution scaling, serpentine traversal (where supported), invert, custom palettes (Game Boy, PICO-8, DawnBringer, CGA/EGA, etc.)
- **Presets**: Save, rename, import/export shareable tokens; deep links via URL query params
- **Export**: Images — PNG, JPEG, WEBP, SVG, clipboard; video — WebM, MP4 (codec-dependent), GIF; frame grab while paused
- **Privacy**: Fully client-side; files never uploaded to Dithering Studio servers

## Algorithm detail pages

Each algorithm has a dedicated reference URL under `/Education/Algorithms/{slug}`:

- [Floyd–Steinberg](https://ditheringstudio.com/en/Education/Algorithms/floyd-steinberg)
- [Bayer 4×4](https://ditheringstudio.com/en/Education/Algorithms/bayer-4x4)
- [Atkinson](https://ditheringstudio.com/en/Education/Algorithms/atkinson)
- [Blue Noise 64×64](https://ditheringstudio.com/en/Education/Algorithms/blue-noise-64x64)
- [ASCII Mosaic](https://ditheringstudio.com/en/Education/Algorithms/ascii-mosaic)
- [Full list in sitemap](https://ditheringstudio.com/sitemap.xml): 30 algorithm slugs (see `algorithm-slugs.json` in the repo)

## Keywords and topics (for retrieval)

image dithering, video dithering, online dithering tool, Floyd–Steinberg, Atkinson dithering, Bayer matrix, ordered dithering, error diffusion, blue noise dithering, retro pixel art, 8-bit effect, halftone, stipple, vaporwave / lofi aesthetic, gradient banding reduction, client-side image processing, free dithering, no upload

## Technical / SEO

- [Sitemap](https://ditheringstudio.com/sitemap.xml): Indexable routes with hreflang alternates (English `loc`, 7 languages)
- [robots.txt](https://ditheringstudio.com/robots.txt): Allows all crawlers
- Prerendered HTML at build time for major routes (Puppeteer); SPA fallback otherwise
- Shareable preview URLs use `?demo=` on the tool (marked `noindex`); algorithm explorer filter `?algo=` is `noindex`

## Contact and attribution

- Creator: [Oslo418 on X](https://x.com/Oslo418)
- Source code: [github.com/Oslonline/dithering-studio](https://github.com/Oslonline/dithering-studio)
- Live app: [ditheringstudio.com](https://ditheringstudio.com/)

## Optional

- [This file (llms.txt)](https://ditheringstudio.com/llms.txt): Machine-readable site summary for AI systems and coding agents
- Alias: `/llm.txt` redirects here (301)