Autoptimize vs Cache Enabler
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Autoptimize v3.1.17 · checked 23 Oct 2026 Free + paid · ★ 4.7/5 Visit Details | Cache Enabler v1.8.17 · checked 23 Oct 2026 Free · ★ 4.3/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 800,000+ | 100,000+ |
| Last updated | October 25, 2026 | September 27, 2026 |
| Editions | Autoptimize · Autoptimize Pro ($) | Cache Enabler |
| Pros | Aggregates and minifies CSS and JavaScript; Lazy-loads images with WebP and AVIF support; Works without changing theme code | Free, lightweight and simple to configure; Static HTML page cache with cache expiry and automatic clearing; WP-CLI commands and Gzip or Brotli pre-compression |
| Cons | Aggressive script changes can break pages and need testing; Page cache, CDN and critical CSS need the paid Pro version | Small feature set; no object cache or database cleanup; Browser caching is limited to 304 revalidation; WebP rewriting assumes the .webp files already exist |
| Mentioned in our posts | — | 2 |
| Features (Speed Optimization plugins checklist) | ||
| Page cache | — | Yes |
| Browser cache | — | No |
| Minify CSS/JS | — | Yes |
| CDN | — | No |
| Object cache | — | No |
| Database cleanup | — | No |
| Free version | — | Yes |
| More features | ||
| Other features | CSS and JavaScript aggregation and minification, Image lazy-load and WebP and AVIF settings, Extra options for fonts, emoji and script placement, Critical CSS through the criticalcss.com premium API ($), Pro upgrade tab in the admin | Static HTML page cache on disk, Automatic cache clearing on content and option changes, Cache expiry with hourly cleanup, Image URL rewriting to WebP, Gzip and Brotli pre-compressed cache files, Separate cache versions for mobile devices, WP-CLI cache clearing commands, Cache size shown in the dashboard |
| Integrations | ||
| E-commerce | — | WooCommerce |
| Plugins | — | Autoptimize |
| Other | criticalcss.com ($), Google Fonts | — |
| Requires WordPress | 5.3 | 5.1 |
| Requires PHP | 7.4 | 5.6 |
| Tested up to | 7.1 | 7.1 |
| Phones home | No | No |
| External services | criticalcss.com, misc.optimizingmatters.com | — |