Lock many frames to one palette, clean them up, audit the colour budget and export.
Drop image files hereProcess many files at onceNo upload · processed on this device
Pixel Lab
Lock many frames to one palette, clean them up, audit the colour budget and export.
How it works
Add images
Adjust settings and review the result
Download a new file
Supported formats
PNG / JPG / WebP / AVIF / HEIC → PNG + JSON (ZIP) — Input decoding depends on browser support and optional engines.
What this tool does
Bring many frames to one palette, then clean up, audit and export in one place.
Implementation and verified quality
advanced · shared Oklab histogram / locked palette indices / ordered and error-diffusion dithers / indexed recolour. Quality qualification is in progress. Pro/Flagship quality has not been established.
Before you export
It prepares pixels; it does not draw new detail. Error-diffusion dithering can differ between frames, so animations should use None or an ordered matrix.
Frequently asked questions
What are this tool’s limitations?
It prepares pixels; it does not draw new detail. Error-diffusion dithering can differ between frames, so animations should use None or an ordered matrix.
Are my files uploaded?
Nerulio processes selected files on your device and has no file-upload API. Optional engines and models are downloaded from third parties; those requests expose connection information such as your IP address.
Will my work be saved automatically?
No. Images and editing state stay in this tab; media output can use local temporary storage. Changing language preserves your work; reloading, closing the tab, or following a link to another page can clear it.