Best debugging tool plugins for WordPress
The most popular debugging tool plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Output Buffer Tester leads with 10+ active installs. All 1 plugins tagged “debugging tool” 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.
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Top 1 debugging tool plugins
- 1.
Output Buffer TesterThe most installed debugging tool plugin, with 10+ active installs. No reviews yet, last updated 8 years ago. Tested only up to WordPress 4.9.35.