reSmush.it Image Optimizer vs ShortPixel Image Optimizer
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | reSmush.it Image Optimizer v1.0.6 · checked 23 Oct 2026 Free · ★ 4.3/5 Visit Details | ShortPixel Image Optimizer v6.6.1 · checked 23 Oct 2026 Free + paid · ★ 4.5/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 100,000+ | 300,000+ |
| Last updated | August 20, 2026 | October 14, 2026 |
| Editions | reSmush.it Image Optimizer | ShortPixel Image Optimizer |
| Pros | Free, with no paid edition; Optimises on upload and in bulk; Quality setting and EXIF removal option | Compression, WebP and AVIF conversion; Bulk optimisation and resizing; Multisite support |
| Cons | Sends image files to an external service; API calls use plain HTTP and disable SSL host checks; Relies on a third-party service being available | 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 | Optimise images on upload, Bulk optimise from the Media Library, Image quality setting, Keep or remove EXIF data, Scheduled optimisation through cron, Optimisation status column in the Media Library, WP-CLI quality command | 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 | reSmush.it optimisation API | ShortPixel API, Cloudflare API |
| Requires WordPress | 4.0.0 | 5.9.0 |
| Requires PHP | 7.4 | 7.4 |
| Tested up to | 7.1 | 7.1 |
| Phones home | No | Only if you agree |
| External services | api.resmush.it | api.cloudflare.com, api.shortpixel.com |
| Custom tables | — | 4 |