PluginScout

WP CSS Merge — WordPress Caching Plugin

by digitalapps · WordPress.org page · Website

v2.0.2 Tested up to WP 7.1 PHP 7.4+

WP CSS Merge has fewer than 10 active installs on WordPress.org and 1,631 downloads all time. We have tracked it since September 4, 2026; download trends appear after 30 days of data. The last update was on September 5, 2026, tested up to WordPress 7.1.

WP CSS Merge at a glance

Active installs
fewer than 10
Total downloads
1,631
Downloads, last 30 days
–
available after 30 days of tracking
30-day growth
–
tracking since September 4, 2026

Is WP CSS Merge well maintained?

Support threads resolved
No open threads
nothing waiting on the WordPress.org forum
WordPress compatibility
Current
tested up to WordPress 7.1, the current release is 7.1

Features

The feature list from the plugin's own readme on WordPress.org, trimmed to the essentials.

  • Uses WordPress’s resolved print order, including late dependency changes and already printed styles
  • Creates different bundles for different style sets instead of sharing one global file
  • Keeps external, inline, conditional, RTL, unsupported, and excluded styles unchanged. Bypasses bundling when other plugins filter stylesheet tags or URLs…
  • Rebases relative image and font URLs to their original public locations
  • Writes cache files atomically in the current site’s uploads directory
  • Automatically serves the original stylesheets whenever bundling is unavailable or unsuccessful
  • Fingerprints the actual source contents, versions, settings, locale, URLs, and printed style combinations. Source changes are detected even when timestamps and…
  • Retains published bundles for cached pages across setting changes, updates, theme switches, and deactivation
  • Supports multisite with a separate cache location for each site

Details

Safely combines compatible local stylesheets into cached bundles while preserving WordPress dependency order and automatic fallbacks.

The full description, screenshots and every review live on the WordPress.org page.

Rankings WP CSS Merge competes in

Tags

  • cache
  • css
  • optimization
  • performance

More from digitalapps

Version
2.0.2
Last updated
Sep 5, 2026
First published
Oct 3, 2019
Requires WordPress
6.0
Tested up to
7.1
Requires PHP
7.4
Pricing
Free on WordPress.org

WP CSS Merge FAQ

What does WP CSS Merge do?

According to its WordPress.org readme, WP CSS Merge offers Uses WordPress’s resolved print order, including late dependency changes and already printed styles, Creates different bundles for different style sets instead of sharing one global file, Keeps external, inline, conditional, RTL, unsupported, and excluded styles unchanged. Bypasses bundling when other plugins filter stylesheet tags or URLs, Rebases relative image and font URLs to their original public locations and Writes cache files atomically in the current site’s uploads directory.

How many active installs does WP CSS Merge have?

WordPress.org reports fewer than 10 active installs for WP CSS Merge as of September 7, 2026.

Is WP CSS Merge still maintained?

Yes. The last release was on September 5, 2026 and it is tested up to WordPress 7.1.

Is WP CSS Merge free?

WP CSS Merge is free to install from WordPress.org. Many plugins also sell a paid version or add-ons.