About Palette Batch
Palette Batch applies user-selected RGB replacements to PNG sprites. It can recolor a sprite collection into named variants for team colors, biome changes, or palette corrections. Unmapped colors stay unchanged. Image dimensions and pixel transparency are preserved, including semi-transparent pixels. Fully transparent pixels are left untouched.The offline edition imports multiple PNGs, folders, or a ZIP, previews the changes, and exports up to eight named variants in a ZIP. Folder paths and original filenames are preserved within each variant folder. Color mappings can be saved and loaded as JSON. Processing runs locally in a current desktop browser.
The free browser demo supports one image, one variant, and PNG export. The offline batch edition is a $5 USD one-time download. Batch limits include 300 PNGs, 64 MiB of input, 2048 pixels per side, and 8,388,608 source pixels. Animated, 16-bit, and interlaced PNGs are not supported. Output is 8-bit RGBA; PNG metadata and color profiles are omitted. Additional ZIP and output limits are documented in the app.
Development used AI-assisted code. The tool applies explicit color mappings and does not use AI models to process images.
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