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Best unit testing plugins for WordPress

The most popular unit testing plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Sample data for bbPress leads with 10+ active installs, ahead of wp-unit (10+). All 3 plugins tagged “unit testing” 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 2 unit testing plugins

  1. 1.
    Sample data for bbPress

    The most installed unit testing plugin, with 10+ active installs. No reviews yet, last updated 6 years ago. Tested only up to WordPress 5.3.27.

  2. 2.
    wp-unit

    10+ active installs. No reviews yet, last updated 15 years ago. Tested only up to WordPress 3.0.5.

All 3 plugins tagged “unit testing”