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LibreSprite vs mtPaint: catalog facts
LibreSprite	mtPaint
Free Free and open source under the GPL 2.0.	Free Free and open source under the GPL-3.0.
Windows, macOS, Linux, Android	Windows, Linux
Purpose-built for pixel art, with onion skinning and frame animation Tiled drawing mode for building seamless textures	Edits indexed palette and 24-bit RGB images Layers, channels and animation support
Last release was December 2023; development is slow Aseprite has moved on considerably since the 2016 fork point	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-2.0	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

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