Best defines plugins for WordPress
The most popular defines plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Define Constants leads with 40+ active installs, ahead of PHP Constants Manager (10+). All 2 plugins tagged “defines” 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 2 defines plugins
- 1.Define Constants
The most installed defines plugin, with 40+ active installs. No reviews yet, last updated 4 years ago. Tested only up to WordPress 5.8.19.
- 2.
PHP Constants Manager10+ active installs. Only 1 review so far, updated 2 months ago.
All 2 plugins tagged “defines”
Define Constants
Down in the last 7 days:284#22,424by ramon fincken5 years ago
GUI in backend to define constants without any programming knowledge. Every file in your theme has access to your constant.
- Installs
- 40+
- Rating
- –
- Downloads
- 0/day

PHP Constants Manager
Up in the last 7 days:260#30,767by cartpauj2 months ago
Safely manage PHP constants (defines) through the WordPress admin or WP-CLI with full CRUD functionality and comprehensive viewing capabilities.
- Installs
- 10+
- Rating
- 5.0(1)
- Downloads
- 3/day