Question 1

What is the Contrast Ratio Calculator?

Accepted Answer

The Contrast Ratio Calculator is a free online tool that helps you perform quick calculations. No signup, no tracking, and everything happens right in your browser — nothing is uploaded to any server.

Question 2

How do I use the Contrast Ratio Calculator?

Accepted Answer

Simply enter your values into the input fields, click the button, and the tool instantly computes the result. You can copy the results to your clipboard with one click. No downloads, no accounts, no ads.

Question 3

Does the Contrast Ratio Calculator upload my files to a server?

Accepted Answer

No. All file processing happens entirely in your browser using JavaScript. Your files never leave your device. This makes the tool fast, private, and secure.