Posterize Image
Reduce an image to a few flat color bands for a bold poster or screen-print look. Adjust the number of levels live. Free, private, and instant — processed in your browser, never uploaded.
Upload an image
Drop image here
or click to browse
Options
Adjustable levels
Drag the slider from 2 to 8 color levels to control how flat and bold the poster effect looks.
100% private
Your image is posterized entirely in your browser using the Canvas API — nothing is ever uploaded to a server.
Free and unlimited
No signup, no watermark, no daily limit. Posterize as many images as you like.
How to posterize an image
Upload your image
Drag and drop or click to select a JPG, PNG, or WebP image.
Set the levels
Use the levels slider to choose how many color bands the image is reduced to.
Pick a format
Choose PNG to keep transparency or JPG for the smallest file size.
Download
Click download to save the posterized image to your device.
Frequently asked questions
How do I posterize an image?
Upload your image above, set the number of levels with the slider, and the poster effect updates live. Then click download to save it. Everything runs in your browser — nothing is uploaded.
Is the posterize tool free?
Yes — completely free and unlimited. No signup, no account, no watermark, no daily limit.
Are my files uploaded to a server?
No. The posterizing happens entirely in your browser on your device. Your image never leaves your computer, so it stays fully private.
What does the levels slider do?
It sets how many discrete steps each color channel is reduced to. Fewer levels means flatter, bolder bands; more levels keeps the result closer to the original photo.
Posterize another image
Drop in a new photo to create another poster effect — free and unlimited, no signup required.
Choose The Right Tool
Why this page exists
Use posterize to reduce an image to a few flat color bands for a bold poster or screen-print look — adjust the number of levels live.
Best for
- Poster, comic, and screen-print style graphics
- Flat, banded color for stylized art
- Simplifying a busy photo into bold shapes