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Mellel vs GNU TeXmacs: catalog facts
Mellel	GNU TeXmacs
Paid Paid application sold through the developer's web store, with occasional discounts.	Free Free software, part of the GNU project.
macOS	Windows, macOS, Linux
Designed for long academic and technical documents Native builds for Apple Silicon and Intel Macs	WYSIWYG editing of mathematical formulas Front end for computer algebra and statistics systems
macOS only on the desktop Paid software with no free tier mentioned	Not based on LaTeX, so conversion to and from LaTeX is not always exact Interface differs from common word processors and takes learning
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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