Posterize Image
Reduce colors in an image for a bold poster / pop-art effect. Choose the number of levels. Free.
✓ 100% free ✓ No sign up ✓ Runs in your browser — nothing uploaded
How to use Posterize Image
- 1Drop one or more images into the box above.
- 2Adjust the settings — the preview updates live.
- 3Click “Download” to save, or apply to all images as a ZIP.
Questions
Is Posterize Image free?
Yes. Posterize Image is 100% free with no limits, no watermark, no sign up and no email required.
Are my files uploaded to a server?
No. Your files are processed entirely inside your browser using JavaScript. They never leave your device, so it is private and works even on slow connections.
Does Posterize Image work on my phone?
Yes. Posterize Image works in any modern browser on iPhone, Android, Windows, Mac, Linux and Chromebook. No app or install needed.
Do I need to create an account?
Never. There is no sign up, no login, no email and no paywall. Just open the page and use it.