Dysmaths screenshot:

Dysmaths is a web app for writing and organizing math and geometry work in a simpler, more visual way, to be used in school or for homework.

It is designed for children who need extra support with writing, especially children with specific learning differences such as:

• dyspraxia
• dysgraphia
• and other needs that make handwriting or structured notation harder

Dysmaths helps users:

• write math directly in the browser
• work with geometry as well as algebra and other math content
• work with a cleaner, more guided layout
• use a school-style long division tool
• edit math blocks without relying on handwriting
• optionally use a dyslexia-friendly font
• import an image or a PDF page as the sheet background
• create multi-page documents
• import and export documents as .dysmaths files
• preview math clearly before exporting or printing
• use the app like a lightweight installable web app

The goal is to make math work less frustrating and more accessible, while keeping it close to the way mathematics is written on paper.

Official website: Official website · Created by Guillaume Champeau

The repository currently includes documentation for the long-division block in docs/division-written.md.

• browser-based math workspace
• structured visual math editor
• long division support
• multilingual interface
• export-friendly document generation
• PWA support

• Next.js 15
• React 19
• TypeScript
• next-intl
• Lexical
• MathLive
• KaTeX

• Node.js 20 or newer
• npm

npm install

npm run dev

npm run build

npm run start

Umami analytics is optional and only loads in production when both public environment variables are set.

Copy .env.example to .env.local and configure:

NEXT_PUBLIC_UMAMI_SRC=https://umami.your-website.com/script.js
NEXT_PUBLIC_UMAMI_WEBSITE_ID=your-website-id

If these variables are missing, the Umami script is not injected.

npm run lint

• app/ - Next.js app routes, layouts, manifest, and service worker endpoint
• components/ - reusable UI and math editing components
• docs/ - feature documentation
• i18n/ - locale routing and request configuration
• messages/ - translation content
• public/ - static assets, including MathLive fonts
• scripts/ - project-specific runtime helpers
• types/ - custom TypeScript declarations

Contributions are welcome. Please read CONTRIBS.md before opening a pull request.

This project is licensed under the GNU Affero General Public License v3.0. See LICENSE for the full text.