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JS Paint vs Paintbrush: catalog facts
JS Paint	Paintbrush
Free Free and open source under the MIT License, with optional donations.	Free The source describes Paintbrush as freeware.
Linux, Web	macOS
Faithful MS Paint interface in any browser Extra features beyond the original, including vertical text	Opens and saves BMP, PNG, JPEG, TIFF, and GIF Supports transparency in PNG and GIF
Deliberately simple compared with full photo editors No layers or advanced retouching tools	Aims to provide a basic, streamlined image editor rather than replace high-end image editors
Downloadable app, Web application	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 8, 2026

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