Description
Images are usually the heaviest thing on a WordPress page, and Smush from WPMU DEV is one of the most installed tools for trimming them. It compresses new uploads automatically, bulk-processes your existing media library and resizes photos that are far larger than your theme ever displays.
Alongside compression it handles lazy loading, detection of incorrectly sized images and removal of hidden photo metadata. Please read the licensing note below carefully: several of the Pro-level gains (super compression, WebP/AVIF conversion and the CDN) run on WPMU DEV’s own servers.
Key features
- Automatic compression of new uploads
- Bulk optimisation of the existing media library
- Resize images above a maximum width and height
- Lazy loading for images and iframes
- Detection of incorrectly scaled images
- EXIF metadata removal
Best for
- Bloggers and photographers with large media libraries
- Stores with many product photos
- Anyone chasing better Core Web Vitals scores
Requirements
- WordPress 5.x or newer and PHP 7.4 or newer
- Enough server resources for bulk processing
What you get
- The original, unmodified Smush Pro plugin files, version 4.3.4 (updated 30 September 2026)
- Released under the GPL licence
- Use it on as many sites as you own or build for clients
- Instant download from your Moryvanta account after checkout
Good to know
- Moryvanta is an independent GPL redistributor and is not affiliated with or endorsed by WPMU DEV. Product names and trademarks belong to their owners.
- Please note: the GPL covers the plugin files and updates. It does not include a WPMU DEV membership or licence key, and Smush’s super compression, WebP/AVIF conversion and CDN all run through WPMU DEV’s servers, which need that licence. If you need those features, contact Moryvanta support and we’ll help you get a licence, from us where possible or from WPMU DEV.
- Without a WPMU DEV licence, expect standard compression and lazy loading; cloud-based Pro features will not work.
- Moryvanta support covers downloading and installing the files.
Frequently asked questions
What is Smush Pro?
Smush Pro is the premium edition of the Smush image optimisation plugin for WordPress, used to compress, resize and lazy load images.
Will it convert images to WebP?
WebP and AVIF conversion in Smush run through WPMU DEV’s servers and need an active licence.
Does it reduce image quality?
Lossless compression keeps quality identical; lossy levels shrink files further with little visible difference.
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