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Prime Cache

Free WordPress caching plugin with a one-click Auto preset: page caching, minification, critical CSS, WebP and lazy loading, no server setup needed.

Tools: one-click optimization presets (Auto applies a working configuration, Safe returns to a conservative one), plus settings import/export and system information.

Cost / License

  • Freemium (Pay once)
  • Open Source (GPL-2.0)

Platforms

  • Wordpress  Requires a self-hosted WordPress site. Server rules are written to .htaccess automatically on Apache and LiteSpeed; on Nginx, add the provided configuration manually.
Dashboard: cache hit rate, quick actions such as clearing the cache, and the status of each feature at a glance.
File Optimization: HTML, CSS and JavaScript minification and related settings.
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Prime Cache information

  • Developed by

    JP flagRapls Works

  • Licensing

    Open Source (GPL-2.0) and Freemium product.

  • Pricing

    One time purchase (perpetual license) ranging between $38 and $76 + free version with limited functionality.

  • Written in

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  • Supported Languages

    • English
    • Japanese

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Prime Cache was added to AlternativeTo by Yoshiaki Miyaguchi on and this page was last updated .

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What is Prime Cache?

Prime Cache is a free, open-source (GPL) caching and performance plugin for WordPress.

It covers page caching, HTML/CSS/JS minification, critical CSS, unused-CSS removal, WebP conversion, lazy loading, Brotli compression and link prefetching.

An Auto preset applies a working configuration in one click, so there is no settings maze to work through before the first measurable result. If something looks wrong, a Safe preset returns everything to a conservative configuration in one click.

It runs on ordinary shared hosting with no server configuration and no external service. The rules it needs are written to .htaccess automatically.

The plugin is free on WordPress.org and not time-limited. An optional paid add-on, Prime Cache Pro, adds object caching and further tuning.