WLJS Notebook

This is the largest update for the last 2 years Human-, LLM- and Git-friendly .wln format · This release introduces a new minimal .wln notebook format designed to be readable by humans, easy for LLMs to parse, and much friendlier to Git dif...

Published on May 14, 2026 by Kirill Vasin

What's coming in 3.0.5

- Built-in AI Copilot is retiring - MCP Server - CLI - interact with notebooks from the terminal, LLM-friendly - New .wln format - human-readable and git-d...

Published on May 1, 2026 by Kirill Vasin

Release notes v3.0.4

Sorting feature for Dataset and Tabular · We added both Kernel- and frontend-side sorting for Dataset and Tabular. Just click on one of the headers. Or course, if you export a notebook to an HTML file sorting may not work for large datasets...

Published on April 18, 2026 by Kirill Vasin

About

As an open-source initiative, our mission is to bring the power of Wolfram Language computation—traditionally associated with heavyweight closed commercial tools—into a portable, browser-based environment. Developed through the collective effort of physicists and programmers this freeware notebook environment helps in solving real-world scientific challenges, teach students complex concepts from science more intuitively, and explore mathematics and computational thinking in a more interactive and accessible way using symbolic programming paradigm.

WLJS Notebook is the first open-source solution to feature true 2D math input combined with powerful syntax sugar and the fastest granular interactive evaluation engine, making it ideal for advanced mathematical workflows, scientific computing, and data exploration.

Our team

Kirill Vasin

Admin

Kirill Belov

Admin