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Image Posterizer

Reduce the number of color levels in actual image pixels.

Tool inputs stay in your browser · optional AI search sends your query

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Good to know: Works locally in your browser with JPG, PNG and WebP. No images are sent to the server. Maximum 10 MB per file, 8 megapixels and 4096 pixels per side. Up to two images only for comparison; other tools use one. Outputs have the same pixel size unless the tool explicitly changes it. Static images only; animation and original metadata are not preserved. Keep your original files.

How to use it (step by step)

  1. 1Choose a photo or graphic.
  2. 2Choose 2–16 levels for each RGB channel; fewer gives a bolder effect.
  3. 3Create and download the PNG. This is a raster effect, not vector tracing.

Words to know

Resolution / pixels
A picture is made of tiny dots called pixels. 1080×1920 means 1,080 dots wide and 1,920 tall.
Posterize / color levels
Reducing each color channel to a few brightness steps, creating broad, bold areas of color.
EXIF / metadata
Hidden information stored inside a photo: camera, date and sometimes the exact place it was taken.
JPG, PNG, WebP
Picture file types. JPG is best for photos, PNG for graphics and see-through backgrounds, WebP is newer and smaller.
Data storage units
Sizes of digital files: 1 KB ≈ a short text, 1 MB ≈ a photo, 1 GB ≈ a movie. 1 GB = 1,000 MB (or 1,024 in computer counting).

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