A simple CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) generator implemented using JavaScript. CAPTCHAs are commonly used in web forms to prevent automated bots ...

And the source code of Really Simple CAPTCHA which is published is this. 4 characters are displayed in random font, and the two letters "O" and "I" are not used to avoid user confusion.

One of them, a part of iOS 16, is called Automatic Verification and this is what is going to make your life simpler by dealing with the annoying CAPTCHA codes you see on many websites.