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