Open-Source Notebook Interface for Wolfram Language

Your Next-Gen Digital Notebook for Physics, Math, and Data Science

is a lightweight alternative to Mathematica built using open-source tools and the freeware Wolfram Engine aimed on the high-performance dynamics and deep integration with web technologies

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🚀 What is WLJS Notebook?

WLJS Notebook is an interactive, web-based environment for running Wolfram Language (WL) scripts using the freeware Wolfram Engine. No Mathematica installation is required—just register once at wolfram.com for personal use.

• Write reproducible notebooks with no external dependencies
• Publish interactive notebooks online or give to a college on a thumb-drive
• Blazingly fast dynamic, realtime 2D/3D graphics and sound output
• Hackable rich sandbox with 5+ cell types
• Open-source frontend written in Vanilla JS and Wolfram Language
• Develop interactive widgets & small apps for your sci-tools collection

🚀 Overview

📺 Demonstration Project

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🖖 Why Use WLJS Notebook?

Interactive & Powerful

WLJS Notebook is optimized for interactive computing and is friendly for mathematicians, physicists and anyone else, who likes to write equations

ManipulatePlot[{
  (*TB[*)Sum[(*|*)(*FB[*)((Sin[2π(2j - 1) x])(*,*)/(*,*)(2j-1))(*]FB*)(*|*), {(*|*)j(*|*),(*|*)1.0(*|*),(*|*)n(*|*)}](*|*)(*1:eJxTTMoPSmNiYGAoZgMSwaW5TvkVmYwgPguQCCkqTQUAeAcHBQ==*)(*]TB*),
  (*TB[*)Sum[(*|*)(*FB[*)((Cos[2π(2j - 1) x])(*,*)/(*,*)(2j-1))(*]FB*)(*|*), {(*|*)j(*|*),(*|*)1.0(*|*),(*|*)n(*|*)}](*|*)(*1:eJxTTMoPSmNiYGAoZgMSwaW5TvkVmYwgPguQCCkqTQUAeAcHBQ==*)(*]TB*)
  
}, {x, -1,1}, {{n,1}, 1,10, 1}]

(*GB[*){{(*VB[*)(FrontEndRef["bf43fd89-46c9-440b-aa55-f87aaa5603d5"])(*,*)(*"1:eJxTTMoPSmNkYGAoZgESHvk5KRCeEJBwK8rPK3HNS3GtSE0uLUlMykkNVgEKJ6WZGKelWFjqmpglAwkTgyTdxERTU900C/NEIMPMwDjFFACLERXY"*)(*]VB*)(*|*),(*|*)(*VB[*)(EventObject[<|"Id" -> "8f1baba4-d37b-4637-b599-897fa6b3c990", "Initial" -> {1}, "View" -> "91f576d4-d1f6-49fb-97ed-566158c1c7c3"|>])(*,*)(*"1:eJxTTMoPSmNkYGAoZgESHvk5KRCeEJBwK8rPK3HNS3GtSE0uLUlMykkNVgEKWxqmmZqbpZjophimmemaWKYl6Vqap6bompqZGZpaJBsmmycbAwCCmRWP"*)(*]VB*)}}(*]GB*)

Try to drag a slider

🔬 Explore Examples

📺 Demonstration Project

Driven by real-world problem solving

Developed through the collaboration of physicists and programmers at University of Augsburg 🇩🇪, it is continuously refined in a feedback loop by solving problems ⚗️ in science, math, and education.

Feels like Mathematica and Jupyter

WLJS Notebook is compatible with Wolfram Mathematica and has a flat and minimal notebook structure like in Jupyter Lab

All power of Wolfram Language standard library is at your hands

And most common narrative tools are included

My first report

Here is a regular paragraph, which can be styled.

tip

$\\LaTeX$ is also supported

Cross-Platform Desktop App

⬇️ Download WLJS Notebook

💻 Available for Windows, macOS, and Linux
🚀 Comes with an auto-updater & CLI support

Server Mode

You can use just a normal browser to work with your notes. Just start it using wolframscript—no extra dependencies needed.

🛠️ GitHub Repo
📦 Docker Container Setup

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📥 Installation Guide

Windows

• Download and install the latest .exe from the Releases.

Linux

Using .deb Package (Recommended)

sudo apt install ./wljs-notebook.deb

⚠ Ubuntu 24.04 users: If you encounter AppArmor issues, run:

sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0

Using .zip Archive

Extract and run the wljs-notebook executable.

macOS

Using .dmg Installer

• Apple Silicon users: Download the -arm64.dmg version.
• Intel Mac users: Use the regular .dmg version.

Using Homebrew

brew install --cask wljs-notebook

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⚙️ Running WLJS Notebook as a Local Server

You can run WLJS Notebook without a desktop app—just using wolframscript.

git clone https://github.com/JerryI/wolfram-js-frontend
cd wolfram-js-frontend
wolframscript -f Scripts/start.wls

For a specific hostname and port setup:

wolframscript -f Scripts/start.wls host 0.0.0.0 http 8080 ws 8081 ws2 8082 docs 8085

Additional options:

wolframscript -f Scripts/start.wls folder "Demos"  # Set home folder
wolframscript -f Scripts/start.wls noautolaunch True  # Disable autolaunch

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📢 Featured Publications

WLJS Notebook has been featured in various tech communities:

• Wolfram Research and Development (Video)
• DPG2024 Berlin, March 2024 (Slides)
• Habrahabr (Russian), October 2024 – Dynamic presentations with WLJS
• Medium, May 2024

📖 Read more on our Blog

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🔗 Useful Links

• 📘 Documentation
• 📺 Live Demos
• 🛠️ GitHub Repo
• 💬 Community
• 🐴 Telegram

⚖️ Licensing

WLJS Notebooks (including all extensions, frontend and backend) is licensed under GPLv3 👩🏼‍⚖️ The algorithms, functions, and other components of Wolfram Language provided by the Wolfram Engine are the intellectual property of Wolfram Research, Inc. See the license agreement for details.