WP-Optimize vs WP Smush
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | WP-Optimize v4.7.0 · checked 23 Oct 2026 Free · ★ 4.8/5 Visit Details | WP Smush v4.3.5 · checked 23 Oct 2026 Free + paid · ★ 4.8/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 1M+ | 1M+ |
| Last updated | September 21, 2026 | October 20, 2026 |
| Editions | WP-Optimize · WP-Optimize Premium ($) | Smush · Smush Pro ($) |
| Pros | Page, browser and minified-asset caching in the free edition; Database cleanup for revisions, spam, tables and more; Image compression and WebP conversion | Bulk and on-upload image compression at no cost; Lazy loading for images and embedded video; Works with common page builders, WooCommerce and caching plugins |
| Cons | Unused CSS, Google Fonts hosting and Cloudflare purge are paid; Image compression relies on the reSmush.it service; Many scheduled background jobs run on the site | WebP, AVIF, resizing and the image CDN need Smush Pro; Images are sent to the WPMU DEV API for compression |
| Mentioned in our posts | 1 | 3 |
| Features (Speed Optimization plugins checklist) | ||
| Page cache | Yes | — |
| Browser cache | Yes | — |
| Minify CSS/JS | Yes | — |
| CDN | Yes | Yes |
| Object cache | No | — |
| Database cleanup | Yes | — |
| Free version | Yes | Yes |
| More features | ||
| Other features | Image compression through reSmush.it, WebP conversion of compressed images, Scheduled page cache preload, 404 error log with daily pruning, Gzip compression test, Spam comment review link, Unused CSS removal ($), Local hosting of Google Fonts ($) | Bulk compression of the media library, Lazy loading for images and embedded video, WebP and AVIF conversion (Pro) ($) |
| Integrations | ||
| E-commerce | — | WooCommerce |
| Plugins | — | WP Rocket, Elementor, Divi, Gravity Forms |
| Other | reSmush.it, checkgzipcompression.com, Cloudflare ($) | WPMU DEV Smush API |
| Requires WordPress | 4.9 | 6.4 |
| Requires PHP | 7.2 | 7.4 |
| Tested up to | 7.1 | 7.1 |
| Phones home | No | Only if you agree |
| External services | checkgzipcompression.com, api.resmush.it, plugins.svn.wordpress.org, teamupdraft.com | smushpro.wpmudev.com |
| Custom tables | — | 1 |