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About Colorblind Simulator
Colorblind Simulator — free, private, browser-based game tool
See how your game UI looks to colorblind players — 3 vision types. It takes JPEG, PNG, WEBP, AVIF and gives you PNG, JPEG, WEBP. It runs in your browser, so the file is processed on your own device.
Why use Colorblind Simulator
- ·Files stay on your device — nothing is uploaded
- ·No signup needed
- ·Works in any modern browser, on any OS
- ·Free daily use; Pro removes limits and watermarks
How to use it
- 1Drop a JPEG, PNG, WEBP, AVIF file on the page, or click to choose one.
- 2Pick the options you want.
- 3Download the PNG, JPEG, WEBP file.
What Colorblind Simulator does
See how your game UI looks to colorblind players — 3 vision types. The result is a PNG, JPEG, WEBP file you download directly.
How it works
crypto.getRandomValues for unbiased rolls; weighted-sample utilities for gacha and drop-rate modeling. The processing code runs inside the page, so your file is not uploaded to a server — you can confirm this in your browser's DevTools → Network tab.
Frequently asked questions
Does Colorblind Simulator upload my files?+
No. Colorblind Simulator runs in your browser and processes the file on your device. Nothing is sent to our servers.
Is Colorblind Simulator free?+
Yes, with a daily free allowance and no signup. Xonvert Pro ($4.99/month) removes the daily limits and the watermark on exported files.
Do I need to install anything?+
No. It works in any modern browser on Windows, macOS, Linux, ChromeOS, Android and iPad.
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