Posterize Image Online

Posterize any image to a flat, graphic look with an adjustable levels slider. Create bold posters and art prints from photos. Free, private, in-browser.

  • No file limits
  • No registration
  • Free forever
  • Images never leave your browser

Drop images here

or paste from clipboard (Ctrl/⌘ + V)

Supported formats: JPG, PNG, WebP, AVIF, SVG

Your images never leave your browser

All processing happens locally on your device. Nothing is uploaded to a server, stored, or tracked.

Reduce each color channel to a handful of levels for a bold graphic art look, with a levels slider that sets the palette size. The effect runs locally, so your photo is flattened on your device and never uploaded.

How it works

What this tool does

This tool lets you reduce each color channel to a handful of levels for a bold graphic art look, with a levels slider that sets the palette size. the effect runs locally, so your photo is flattened on your device and never uploaded.

Is this tool private?

Posterization runs locally. Your image is flattened to a limited palette on your device.

Frequently asked questions

How many levels should I use?

8 levels keeps photos recognizable, while 2 to 4 levels give a bold, graphic-art poster look.

What is posterizing best used for?

It turns busy photos into clean, flat designs for posters, album art and prints, where strong shapes beat fine detail.

Does posterize work on any photo?

Photos with clear contrast posterize best. Busy, low contrast images can look muddy, so boost contrast first for a cleaner result.