Posterize
Flat poster-style color bands
Runs in your browser. Files never leave your device.
How to use Posterize
- Choose or drop your images. You can add several at once.
- Adjust the settings and check the preview.
- Download the result, or every file at once as a ZIP.
About this tool
Reduce the number of tones in each color channel to get flat, poster-like color bands. Fewer levels give a bolder, more graphic look.
The simplify option smooths away fine texture first while keeping edges, so the color areas come out clean instead of speckled. Posterizing brightness only keeps the original hues.
- Works on your device. Nothing is uploaded.
- Free, with no sign-up and no watermark.
- No limits on file count or size beyond what your device can handle.
Questions and answers
What does posterize mean?
Posterizing limits each color channel to a few levels, so smooth gradients turn into visible steps, much like a screen-printed poster.
What is the difference between Posterize and Quantize?
Posterize uses fixed, evenly spaced levels for every channel. Quantize picks the best set of colors for your particular image.
Is Posterize free?
Yes. Every tool on ImgImage is free to use, with no sign-up, no watermark and no limit on how many files you process.
Are my files uploaded anywhere?
No. Your files are processed by your own browser and never leave your device. Nothing you open here is sent to a server.
Does it work on my phone?
Yes. It works in any modern browser on phones, tablets and computers. Large files are processed faster on a computer.