WP-Optimize
95Get caching and more with this powerful cache plugin. Cache, optimize images, clean your database and minify f...
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Smush
Compress and optimize images, enable lazy load, serve WebP & AVIF, and speed up your site with a global image CDN.
The facts
- Rating
- 4.8★ from 6,051
- Active installs
- 1M+
- Price
- Free
- Last updated
- 24 Aug 2026
- Added
- Dec 2008
- Requires WP
- 6.4
- Tested up to
- WP 7.1
- Requires PHP
- 7.4
- Downloads
- 69,009,000
Our analysis
AI-assistedSmush is a WordPress plugin designed for image optimization and compression. It automatically reduces image file sizes and enables lazy loading, which helps improve page speed without compromising image quality. This plugin is suitable for various types of websites, including blogs, stores, and portfolios, allowing users to manage images efficiently across their site.
The plugin operates out of the box, requiring no complicated setup. It supports both lossless and lossy compression methods and can optimize images stored outside the media library. While some features, such as serving images in WebP and AVIF formats and using a global CDN, are available in the pro version, the core functionalities remain useful for many users.
Best for: This plugin suits anyone looking to optimize images on a WordPress site, particularly those with image-heavy content.
What it does well
- ✓Automatically compresses images without losing quality
- ✓Enables lazy loading for improved page speed
- ✓Easy to use with no complicated setup
- ✓Can optimize images outside the media library
- ✓Highly rated with over 1 million active installs
Where it falls short
- •Some advanced features require the pro version
- •Limited information on specific performance metrics
Verdict
Smush offers a straightforward solution for image optimization, making it a practical choice for WordPress users aiming to enhance site performance.
From the developer
WPMU DEV - Your All-in-One WordPress Platform's own description of Smush, lightly tidied.
Compress images, optimize images, and enable image lazy load automatically with the powerful Smush image optimizer to keep your WordPress site fast, without losing quality.
Smush makes it easy to optimize images, compress images, and deliver images faster across your entire WordPress site. This all-in-one image optimizer automatically reduces image file sizes, enables image lazy load, and serves modern formats like WebP and AVIF, all without breaking image quality or adding extra work.
Whether you’re running a blog, store, or portfolio, Smush helps you optimize images at scale and keep your site fast with a trusted WordPress image optimizer.
Trusted by 1+ Million Sites | 4.8/5 Star Rating
Get everything you need to optimize images and speed up your site. Smush works out of the box with no complicated setup – just install and let it handle the rest.
Compress images without losing quality
Reduce image file size automatically while keeping your images sharp and clear. Smush is an easy-to-use image optimizer which let’s you compress images using both lossless and lossy compression, giving you the best balance of quality and performance without extra work.
You can also compress images outside the media library using Directory Smush, making it easy to optimize images stored in theme folders, plugins, or other directories on your server.
Lazy load images for faster pages
Enable image lazy load across your site so images load only when needed. This image optimizer improves initial page speed and creates a smoother experience for visitors without extra configuration.
Serve WebP and AVIF images automatically (PRO)
Convert images to WebP and AVIF and serve them automatically to supported browsers. Smush helps you optimize images using next-gen formats to reduce file size and improve load times across your WordPress site.
Deliver images faster with an Image CDN (PRO)
Serve images through a global image CDN to reduce latency and improve load times for visitors around the world.
- 119 global CDN servers
- Up to 500 GB of bandwidth
- Faster image delivery based on visitor location
- Improved performance for image-heavy and high-traffic sites
Automatically resize and fix image dimensions (PRO)
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