Autoptimize vs Redis Object Cache
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Autoptimize v3.1.16 · checked 23 Oct 2026 Free + paid · ★ 4.7/5 Visit Details | Redis Object Cache v3.0.0 · checked 23 Oct 2026 Free + paid · ★ 4.5/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 800,000+ | 500,000+ |
| Last updated | September 26, 2026 | September 18, 2026 |
| Editions | Autoptimize · Autoptimize Pro ($) | Redis Object Cache · Object Cache Pro ($) |
| Pros | Aggregates and minifies CSS and JavaScript; Lazy-loads images with WebP and AVIF support; Works without changing theme code | Supports several Redis clients, including Relay and PhpRedis; Sentinel and replication configuration in the free version; Status, diagnostics, WP-CLI commands and a flush action in admin |
| Cons | Aggressive script changes can break pages and need testing; Page cache, CDN and critical CSS need the paid Pro version | Object cache only: no page caching, minification or CDN; Needs a reachable Redis server and PHP client extension or library; Shows upgrade prompts for the paid Object Cache Pro |
| Features (Speed Optimization plugins checklist) | ||
| Page cache | — | No |
| Browser cache | — | No |
| Minify CSS/JS | — | No |
| CDN | — | No |
| Object cache | — | Yes |
| 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 ($), Pro upgrade tab in the admin | Predis, PhpRedis, Relay and Credis clients, Sentinel and replication settings, WP-CLI redis commands, Dashboard status widget, Admin bar status and flush, Query Monitor collector and output, Hit and miss metrics pruned hourly, Automatic object-cache.php drop-in update, Upgrade prompts for Object Cache Pro |
| Integrations | ||
| Storage | — | Redis server |
| Plugins | — | Query Monitor |
| Other | criticalcss.com ($), Google Fonts | WP-CLI |
| Requires WordPress | 5.3 | 4.6 |
| Requires PHP | 7.4 | 7.2 |
| Tested up to | 7.1 | 7.1 |
| Phones home | No | No |
| External services | criticalcss.com, misc.optimizingmatters.com | — |