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Best alert box plugins for WordPress

The most popular alert box plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Alert Box Block leads with 400+ active installs, ahead of Singular Alerts (90+) and Notice Block (90+). All 6 plugins tagged “alert box” 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 5 alert box plugins

  1. 1.
    Alert Box Block

    The most installed alert box plugin, with 400+ active installs. Only 1 review so far, updated 3 weeks ago.

  2. 2.
    Singular Alerts

    90+ active installs. Only 2 reviews so far, updated 2 days ago.

  3. 3.
    Notice Block

    90+ active installs. No reviews yet, updated 1 week ago.

  4. 4.
    Gosign

    70+ active installs. No reviews yet, last updated 4 years ago. Tested only up to WordPress 6.0.18.

  5. 5.
    Notification Box Pro

    20+ active installs. Only 2 reviews so far, last updated 1 year ago. Tested only up to WordPress 6.7.11.

All 6 plugins tagged “alert box”