Imsanity vs Optimus
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Imsanity v2.9.4 · checked 23 Oct 2026 Free · ★ 4.9/5 Visit Details | Optimus v1.6.3 · checked 23 Oct 2026 Free + paid · ★ 4.2/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 200,000+ | 30,000+ |
| Last updated | August 20, 2026 | March 2, 2026 |
| Editions | Imsanity | Optimus · Optimus HQ ($) · Optimus HQ PRO ($) |
| Pros | Resizes uploads automatically, with no action from the contributor; Separate size limits for Media Library and other uploads; Bulk resize and per-image resize from the Media Library | Automatic compression on upload; Bulk optimizer for the existing media library; Free version for small uploads |
| Cons | Replaces the original, so the full-size file cannot be recovered; Uses the standard WordPress resize, so output is not heavily optimised; No paid edition; support is through the WordPress.org forum | 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 |
| Mentioned in our posts | 1 | 1 |
| More features | ||
| Other features | Resizes oversized images at upload, before WordPress processes them, Separate maximum width and height for Media Library, other, and all uploads, JPG quality setting applied to resized images, Optional conversion of BMP files to JPG, Bulk resize of existing Media Library images, Resize or remove original from the Media Library list view | Automatic compression of uploaded images, Bulk optimizer for the media library, WebP conversion ($), HTTPS transport to the optimization server ($) |
| Integrations | ||
| Other | — | Optimus API |
| Requires WordPress | 6.8 | 4.6 |
| Requires PHP | 7.4 | 5.6 |
| Tested up to | 7.1 | 6.9 |
| Phones home | No | No |
| External services | — | optimus.io, verify.optimus.io |