Open Source
advanced
Pixelorama: a full pixel editor implementation
A readable Godot/GDScript implementation of canvas, timeline, tilemaps, import/export, extensions, and cross-platform delivery.
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Look beyond popularity: purpose, code value, adoption cost, and maintenance snapshot.
Open Source
advanced
LibreSprite: classic sprite editor codebase
A substantial C++ sprite editor covering pixel tools, animation, formats, theming, and desktop builds.
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Open Source
intermediate
Piskel: browser sprite editor
A web-native sprite editor useful for studying Canvas drawing, GIF/sheet export, and editor state management.
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