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Wolfram Mathematica vs WLJS Notebook: catalog facts
Wolfram Mathematica	WLJS Notebook
Paid Commercial software sold under paid licences.	Free The notebook is free and open source; it relies on a separately obtained Wolfram Engine or…
Windows, macOS, Linux	macOS
Symbolic mathematics alongside numerical computation Interactive notebooks that mix code, results and text	Opens Mathematica .nb files Plain-text notebook format that works well with Git
Commercial licence required Proprietary language and file format	Requires Wolfram Engine or Wolfram Kernel to run code Smaller ecosystem than Mathematica or Jupyter
Downloadable app	Downloadable app
Closed source	Open source
License: Proprietary	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.