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Tux Paint vs JS Paint: catalog facts
Tux Paint	JS Paint
Free Free and open source.	Free Free and open source under the MIT License, with optional donations.
Windows, macOS, Linux, Android, iOS	Linux, Web
Interface designed for young children Runs on many platforms, including Android and Haiku	Faithful MS Paint interface in any browser Extra features beyond the original, including vertical text
Too simple for serious illustration or photo editing iOS version is unofficial	Deliberately simple compared with full photo editors No layers or advanced retouching tools
Downloadable app	Downloadable app, Web application
Open source	Open source
License not stated	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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