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Pixelorama vs mtPaint: catalog facts
Pixelorama	mtPaint
Free Free and open source under the MIT licence. Steam and itch.io listings exist as a way to…	Free Free and open source under the GPL-3.0.
Windows, macOS, Linux, Android, Web	Windows, Linux
Animation timeline with onion skinning and sprite sheet export built in Tilemap and tileset tools for game art, not just single sprites	Edits indexed palette and 24-bit RGB images Layers, channels and animation support
Aimed at pixel art; it is not a general image editor Documentation is explicitly still a work in progress with pages missing	Basic tools compared with full photo editors No release binaries published on the GitHub repository
Downloadable app, Web application	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 1, 2026

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