Make every pixel count.
Load a sheet to preview your grid and color swaps.
Mapped
OUTPUTOne batch. One neat ZIP.
Mapped sheets, split PNG frames, your preset, and a file manifest.
Add a PNG sheet to get started.Use your outputs & pixel limitations
You may run this free demo for personal projects, commercial projects and client work. The tool claims no rights to your art; input licenses still govern exports. The two original sample sheets may be used and modified in your own projects. This does not grant permission to redistribute, resell or host the application. Mandatory rights remain intact. See the included LICENSE.txt in the download.
Exact swaps use browser-decoded RGB; alpha is retained. Browser color management and premultiplied-alpha conversion can normalize RGB, especially beneath transparent pixels. PNG metadata and original bytes are not preserved. Your input files are not overwritten.
Supported files & practical limits
Static PNG only; animated PNG is rejected. Free demo: 2 sheets, 32 frames total, 1 MiB per input, 512 pixels per side, 400,000 pixels per batch and an 8 MiB ZIP (at most 36 files; 4 MiB per entry). Preset files: 64 KiB; 32 color swaps. All sheets share one exact grid. No watermark, upload or account.