Simple Login Captcha

What is Simple Login Captcha?

Simple Login Captcha is a lightweight security plugin that adds a basic math challenge to your WordPress login screen. Developed by Nikolay Nikolov, this plugin has been available for 7 years. It currently holds 10K+ active installs and a 3.9/5 rating from 17 reviews. The rating mix includes 71% 18% one-star ratings. The current version is 1.3.6, and it was last updated on May 26, 2026.

This plugin requires a user to enter a random 3-digit number displayed by a small JavaScript snippet. It does not use image generation, API calls, sessions, cookies, or IP address detection. The plugin is compatible with WooCommerce login forms and WordPress multisite networks. It also collects zero personal data.

Key Features of Simple Login Captcha

• Zero Configuration — Activate the plugin and a captcha appears on your login form. There are no settings to adjust.
• 3-Digit Numeric Challenge — Users see a random number and must type it into a text field to log in.
• No External Dependencies — The plugin functions without any API keys, third-party services, or image generation libraries.
• WooCommerce Compatibility — The captcha works on WooCommerce login forms out of the box.
• Multisite Support — Network administrators can use this plugin across an entire WordPress multisite installation.
• Privacy-First Design — No cookies, sessions, or IP logs are created. The plugin does not store any user data.
• Easy Deactivation — If a bug locks you out, delete the plugin folder via FTP or your hosting file manager.
• XML-RPC Warning — The plugin recommends disabling XML-RPC if you do not use it, since bots can bypass the captcha through that endpoint.

Who Should Use Simple Login Captcha?

This plugin is best for beginners or site owners who want a quick barrier against random login bots. If you run a personal blog, a small business site, or a WooCommerce store, this captcha adds basic protection without complexity. The 71% five-star rating suggests many users appreciate the simplicity. However, the 18% one-star rate indicates that some users encounter issues, often related to the captcha not displaying correctly or blocking legitimate logins.

You do not need technical skills to use this plugin. It works on any WordPress site running version 1.3.6+ with PHP 5.2+. The developer notes that a determined attacker who reads the plugin code can bypass the protection. This tool is not intended for high-security sites. It is a simple filter against casual spam bots.

Installation & Setup

Installing Simple Login Captcha takes less than one minute. Search for "Simple Login Captcha" in your WordPress plugin directory, click install, then activate. There are no settings to configure. The captcha appears automatically on your login form.

If the captcha causes a login error, you can deactivate the plugin by deleting the folder /wp-content/plugins/simple-login-captcha/ via FTP. This recovery method is clearly documented on the plugin page.

Support & Community

The support data for Simple Login Captcha shows zero open threads and zero resolved threads over the last two months, yielding a 0% resolution rate. This suggests either very few users seek help, or the plugin is so simple that questions rarely arise. The rating breakdown reveals a polarized user base. 71% of reviewers give five stars, praising the no-fuss approach. Meanwhile, 18% of reviewers leave one star, often citing issues with the captcha not displaying or blocking their own access.

With 7 years in the repository and a recent update on May 26, 2026, the plugin remains actively maintained. The developer provides a demo site for testing. For users seeking the best captcha plugin for WordPress login, this option offers a trade-off: extreme simplicity for a modest level of protection.