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Best CSS class plugins for WordPress

The most popular CSS class plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Simple CSS for widgets leads with 1K+ active installs, ahead of Custom Menu Class (200+) and HTML Tag and Class Replace (100+). All 5 plugins tagged “css class” 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 CSS class plugins

  1. 1.
    Simple CSS for widgets

    The most installed CSS class plugin, with 1K+ active installs. Only 1 review so far, last updated 8 years ago. Tested only up to WordPress 3.5.2.

  2. 2.
    Custom Menu Class

    200+ active installs. Rated 3.2 from 6 reviews, last updated 10 years ago. Tested only up to WordPress 4.5.33.

  3. 3.
    HTML Tag and Class Replace

    100+ active installs. Only 2 reviews so far, updated 1 month ago.

  4. 4.
    Easy Elements Hider

    100+ active installs. No reviews yet, last updated 4 years ago. Tested only up to WordPress 5.9.20.

  5. 5.
    Menu Item Custom Attributes

    60+ active installs. No reviews yet, updated 2 weeks ago.

All 5 plugins tagged “css class”