Posterize an image online — reduce it to a small number of tones per colour for a bold, flat, screen-printed poster look. Posterization turns smooth gradients into distinct bands of colour for a graphic, retro effect.
What posterize does
Posterizing reduces the number of tones in each colour channel, so smooth gradients collapse into distinct flat bands — the classic bold, screen-printed poster look. It turns a photo into a graphic, limited-colour image with strong, stylised areas of colour.
Control the levels
Fewer levels give a bolder, more abstract result; more levels stay closer to the original. You set the number and preview it live. Your image is uploaded to do the work and deleted automatically an hour later.
How to posterize an image
- 1Upload your image.
- 2Choose how many levels (fewer levels = bolder, flatter look).
- 3Preview the banded result.
- 4Download it.
When to use Posterize
- A bold, poster- or screen-print-style graphic.
- A retro, limited-colour aesthetic.
- Simplifying an image into flat areas of colour.
Frequently asked questions
What does posterize do?
It reduces the number of tones in each colour channel, so smooth gradients collapse into distinct flat bands — the classic poster effect.
What do the levels control?
How many tones remain. Fewer levels gives a bolder, more abstract result; more levels stays closer to the original.
Is it private?
Your image is uploaded to do the work and deleted automatically an hour later. Nothing is kept, and no account is needed.