Open, web-native, accesible tools for computational research

We build WLJS Notebook and its surrounding open-source ecosystem: a modern open-source environment for Wolfram Language and its open-source implementations, interactive visualization, scientific applications, presentations, and web publishing.

WLJS combines typeset mathematical input, live controls, JavaScript integration, portable interactive output, and a plain-text notebook format that works naturally with Git.

Website · How to Install · Documentation · Discussions · Support the project

• WLJS Notebook — the open-source notebook interface for Wolfram Language (or Wolfram Engine).
• Web Components — tools for embedding interactive WLJS notebooks in ordinary web pages.
• Web Components MDX — an MDX and Next.js template for publishing interactive computational content.
• Infrastructure libraries — networking, HTTP, socket, and runtime components supporting the wider WLJS ecosystem.

WLJS is designed for researchers, educators, students, and developers who want to:

• create interactive notebooks and scientific tools;
• keep their work local and available offline;
• version notebooks using Git;
• combine Wolfram Language with JavaScript and any web libraries;
• build interactive presentations and reports;
• publish notebooks as portable HTML (offline and a single file bundle) or MDX;
• work with notebooks through a CLI or Model Context Protocol server.

Everything is task-driven and is carefully tested and refined in real experiments with physicist from University of Augsburg 🇩🇪

1. Install Wolfram Engine or use an available Wolfram Kernel.
2. Download WLJS Notebook.
3. Create a notebook and evaluate your first expression:

Manipulate[
  Plot[Sin[n x], {x, 0, 2 Pi}],
  {n, 1, 10}
]

WLJS Notebook runs on Windows, macOS, GNU/Linux with native extensions, Docker, and remote servers.

• GitHub Discussions
• Reddit
• Telegram
• WLJS website and blog

WLJS is an independent open-source project. Donations help cover code signing, infrastructure, testing, and other recurring project costs.

Support WLJS through Open Collective →

WLJS Notebook is licensed under the GNU Affero General Public License v3.

WLJS is an independent project and is not affiliated with, endorsed by, or sponsored by Wolfram Research.