The WebCalendar plugin for WordPress is now available. See agenticdaisy.com for more information, including the WebCalendar plugin page. Below is an example showing how this plugin outperforms all the other calendar plugins for WordPress. Why? Because it is designed to scale using the knowledge from 20+ years of WebCalendar development.

As an example, the calendar below shows the git commit activity for WebCalendar. There (as of July 2026) is over 5500 commits. That means there are 5500 events in this calendar. That’s enough to choke most other calendar plugins… but not this one. Note that I have April 2026 as the default view below, but you can specify the current date or any other date.

Why It Handles 5,500 Events Without Blinking

Most WordPress calendar plugins store each event as a custom post type — fine for a dozen events, painful at a few hundred. WebCalendar takes a different approach: it uses purpose-built database tables (the same battle-tested schema behind 20+ years of the WebCalendar project), so it stays fast whether you have 50 events or 100,000. The demo above is 5,500 events; in real-world use, the plugin has handled 105,000+ events with multiple users and remote calendar subscriptions and no performance issues.

It’s lean, too — about 5 MB versus 60+ MB for some competitors — and held to a high engineering bar: 1,000+ automated tests, 89% coverage, and PHPStan Level 9 static analysis, a level fewer than 5% of PHP projects reach.

For the full feature list and pricing, see the WebCalendar for WordPress overview.

Get WebCalendar for WordPress

WebCalendar for WordPress is free and open source, available on WordPress.org. To learn more and install it, visit agenticdaisy.com/webcalendar.

Want the backstory? I wrote about it at launch in WebCalendar Is Coming to WordPress. The plugin shares its core with the original WebCalendar project hosted here — two decades of calendar engineering, now in WordPress.