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Best ironclad captcha plugins for WordPress

The most popular ironclad captcha plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Ironclad CAPTCHA WP plugin leads with 10+ active installs. All 1 plugins tagged “ironclad captcha” are below, with figures from WordPress.org that update every day.

Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.

Research this niche or see all plugins.

Top 1 ironclad captcha plugins

  1. 1.
    Ironclad CAPTCHA WP plugin

    The most installed ironclad captcha plugin, with 10+ active installs. Only 1 review so far, last updated 14 years ago. Tested only up to WordPress 3.3.2.

All 1 plugins tagged “ironclad captcha”