Image Optimization - Optimize Images and Convert to WebP or AVIF vs WP Smush

Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.

Feature Image Optimization - Optimize Images and Convert to WebP or AVIF v1.7.7 · checked 23 Oct 2026 Free + paid · ★ 1.7/5 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 22, 2026 October 20, 2026
Editions Image Optimization · Image Optimization paid plan ($) Smush · Smush Pro ($)
Pros Converts images to WebP and AVIF on upload or in bulk; Resizing and compression from the WordPress media area 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 Needs an Elementor account connection before optimisation runs; Upgrade prompts and licence checks tie full use to a paid plan WebP, AVIF, resizing and the image CDN need Smush Pro; Images are sent to the WPMU DEV API for compression
Mentioned in our posts — 3
More features
Other features WebP and AVIF conversion, Optimisation through the Elementor API, Upgrade links on quota errors ($), Licence key activation ($) Bulk compression of the media library, Lazy loading for images and embedded video, WebP and AVIF conversion (Pro) ($)
Integrations
E-commerce — WooCommerce
Plugins Elementor WP Rocket, Elementor, Divi, Gravity Forms
Other Elementor image optimizer API WPMU DEV Smush API
Requires WordPress 6.7 6.4
Requires PHP 7.4 7.4
Tested up to 7.0 7.1
Phones home Only if you agree Only if you agree
External services my.elementor.com, feedback-api.prod.apps.elementor.red smushpro.wpmudev.com
Custom tables — 1