Optimus vs WP Smush
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Optimus v1.6.3 · checked 23 Oct 2026 Free + paid · ★ 4.2/5 Visit Details | WP Smush v4.3.5 · checked 23 Oct 2026 Free + paid · ★ 4.8/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 30,000+ | 1M+ |
| Last updated | March 2, 2026 | October 20, 2026 |
| Editions | Optimus · Optimus HQ ($) · Optimus HQ PRO ($) | Smush · Smush Pro ($) |
| Pros | Automatic compression on upload; Bulk optimizer for the existing media library; Free version for small uploads | Bulk and on-upload image compression at no cost; Lazy loading for images and embedded video; Works with common page builders, WooCommerce and caching plugins |
| Cons | Uploaded images are sent to the vendor's server; Free version has size limits; WebP and secure transport need Optimus HQ; Licence key checked with the vendor | WebP, AVIF, resizing and the image CDN need Smush Pro; Images are sent to the WPMU DEV API for compression |
| Mentioned in our posts | 1 | 3 |
| More features | ||
| Other features | Automatic compression of uploaded images, Bulk optimizer for the media library, WebP conversion ($), HTTPS transport to the optimization server ($) | Bulk compression of the media library, Lazy loading for images and embedded video, WebP and AVIF conversion (Pro) ($) |
| Integrations | ||
| E-commerce | — | WooCommerce |
| Plugins | — | WP Rocket, Elementor, Divi, Gravity Forms |
| Other | Optimus API | WPMU DEV Smush API |
| Requires WordPress | 4.6 | 6.4 |
| Requires PHP | 5.6 | 7.4 |
| Tested up to | 6.9 | 7.1 |
| Phones home | No | Only if you agree |
| External services | optimus.io, verify.optimus.io | smushpro.wpmudev.com |
| Custom tables | — | 1 |