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Pixel Art Cleanup

Find stray pixels, tiny clusters, single-pixel holes and anti-alias leftovers, then clear them.

Drop image files hereProcess many files at once
No upload · processed on this device

Pixel Art Cleanup

Find stray pixels, tiny clusters, single-pixel holes and anti-alias leftovers, then clear them.

How it works

  1. Add images
  2. Adjust settings and review the result
  3. 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

Find and clear stray pixels, tiny clusters, single-pixel holes and anti-alias leftovers.

Implementation and verified quality

advanced · connected components on palette indices / Oklab segment anti-alias snap / outline run measurement. Quality qualification is in progress. Pro/Flagship quality has not been established.

Before you export

Candidates are shown first and fixes stay conservative: a doubled outline is never thinned automatically.

Frequently asked questions

What are this tool’s limitations?

Candidates are shown first and fixes stay conservative: a doubled outline is never thinned automatically.

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.