Free PHP CAPTCHA Scripts

I have experienced many spam attacks on forms which are used for submission or contact forms. Most spammers use this forms to either mass email or in situations you dont use image verification (captcha) these spams will get into your database. Many hosts are very strict about spams and if they find somebody misusing your mail server for spam your host will suspend your account.

I have collected very useful CAPTCHA scripts are of open source and written in PHP. Most of them are free and are released under GPL license.

Captcha PHP

 Quick Captcha

Captcha Generation Class

Captcha Script

Jax Captcha Class

Captcha Creator (commercial) –

BotProof Email – It generates image for identification. More info click here

If you want a very professional captchas with varied color and background captcha creator looks promising.

I have heard so many people saying that spammers can easily break captchas by means of optical recognition, until i have seen the real part of it. More information here so that you can understand the other side of its weakness.

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Balakrishnan Prabhu

Mr. Balakrishnan Prabhu is the founder of Corpocrat magazine. He is also the founder of Best Citizenships (BC), assisting wealthy individuals with with global citizenship and residency programs in Europe. His other interests are Linux, Machine learning, Wordpress, etc. You can contact him here

  • I dont speak on many websites which come across but WE felt I couldn’t pass by the opportunity with ours. Nice post. I can only wonder what you will be writing in the destiny.