Optimus vs ShortPixel Image Optimizer
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 | ShortPixel Image Optimizer v6.6.1 · checked 23 Oct 2026 Free + paid · ★ 4.5/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 30,000+ | 300,000+ |
| Last updated | March 2, 2026 | October 14, 2026 |
| Editions | Optimus · Optimus HQ ($) · Optimus HQ PRO ($) | ShortPixel Image Optimizer |
| Pros | Automatic compression on upload; Bulk optimizer for the existing media library; Free version for small uploads | Compression, WebP and AVIF conversion; Bulk optimisation and resizing; Multisite support |
| 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 | Needs a ShortPixel account key; Optimisation uses a credit quota, paid above the free allowance; AI features have their own monthly quota |
| Mentioned in our posts | 1 | 1 |
| More features | ||
| Other features | Automatic compression of uploaded images, Bulk optimizer for the media library, WebP conversion ($), HTTPS transport to the optimization server ($) | Image compression and conversion, Bulk optimisation, Custom optimisation page, Network settings for multisite, AI file renaming (monthly AI quota) ($), Buy more credits upsell ($) |
| Integrations | ||
| E-commerce | — | WooCommerce |
| Plugins | — | WPML, Gravity Forms, Yoast SEO |
| Other | Optimus API | ShortPixel API, Cloudflare API |
| Requires WordPress | 4.6 | 5.9.0 |
| 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 | api.cloudflare.com, api.shortpixel.com |
| Custom tables | — | 4 |