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Best online registration plugins for WordPress

The most popular online registration plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. SeatReg leads with 300+ active installs, ahead of CourseStorm Class Registration for WordPress (40+) and Eventish WP Widget (10+). All 4 plugins tagged “online registration” 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 4 online registration plugins

  1. 1.
    SeatReg

    The most installed online registration plugin, with 300+ active installs. Rated 5.0 from 30 reviews, updated 2 weeks ago.

  2. 2.
    CourseStorm Class Registration for WordPress

    40+ active installs. Only 1 review so far, updated 1 month ago. Tested only up to WordPress 6.8.12.

  3. 3.
    Eventish WP Widget

    10+ active installs. No reviews yet, last updated 14 years ago. Tested only up to WordPress 3.2.1.

  4. 4.
    Subject Registration Addon

    Fewer than 10 active installs. No reviews yet, last updated 7 years ago. Tested only up to WordPress 5.0.31.

All 4 plugins tagged “online registration”