Captcha with Ajax method for sending code. Logins, Contact forms, Comments, WooCommerce. Firewall and REST API.
As of April 2026, Captcha Ajax is a WordPress ajax plugin with 100 active installations and a 4.7/5 rating from 3 reviews. It has been downloaded 3.1K+ times in total. Requires WordPress 5.0+ and PHP 7.2.24+. Available on WordPress.org since 2023. Actively maintained — updated within the last month. Top alternative: zipaddr-jp.
Captcha works fine with website cache.
Adds Captcha Asynchronously anti-spam methods to WordPress. Include login form, registration form, lost passwordform and comments form. The asynchronously method allows captcha to work well when a page cache, server cache or plugin cache, is active.
Captcha for comments form
Captcha for Contact Form 7
Captcha for Forminators form.
Captcha for WooCommerce plugin. Login form, Lost Password form.
Select the letters type from the options – Capital letters, Small letters or Captial & Small letters.
| WordPress | 5.0+ requiredTested up to 6.9.4 |
| PHP | 7.2.24+ required |
Security fix for IP check
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.