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PyDPainter vs mtPaint: catalog facts
PyDPainter	mtPaint
Free Free and open source under the GPL-3.0-or-later license.	Free Free and open source under the GPL-3.0.
Windows, macOS, Linux	Windows, Linux
Supports classic pixel art formats including IFF and ANIM Includes color cycling and animation tools	Edits indexed palette and 24-bit RGB images Layers, channels and animation support
Focused on pixel art workflows	Basic tools compared with full photo editors No release binaries published on the GitHub repository
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 1, 2026

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