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Best add functions to posts plugins for WordPress

The most popular add functions to posts plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Custom Checkbox for Posts leads with 10+ active installs. All 1 plugins tagged “add functions to posts” 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 add functions to posts plugins

  1. 1.
    Custom Checkbox for Posts

    The most installed add functions to posts plugin, with 10+ active installs. Only 1 review so far, last updated 6 years ago. Tested only up to WordPress 5.4.25.

All 1 plugins tagged “add functions to posts”