letramoel / mutasprite Star 0 Code Issues Pull requests Free Windows tool: remove flat-colour backgrounds from game sprites (green screen, magenta, white or any colour) → clean transparent PNGs. Optional Pixelize / Slice / Batch modules. 100% offline. Releases · issues · feedback (no source). windows gamedev pixel-art spritesheet sprite chroma-key game-assets offline-app slicer gamedev-tool pixel-art-editor background-removal ai-art 9-slice background-removal-software chroma-key-green-screen chroma-key-windows-editor portable-exe pixel-art-tool ai-art-converter Updated Aug 9, 2026