Plugin: wp-smushit (Used by 91,020 domains)

Compress images, optimize images, and enable image lazy load automatically 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. Automatically reduce image file sizes, enable image lazy load, and serve 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.

Trusted by over 1 million WordPress sites.

With a 4.8/5 rating.

Everything you need to optimize images and speed up your site.

Works out of the box with no complicated setup.

Compress images without losing quality

Reduce image file sizes automatically while keeping your images sharp and clear. Smush lets you compress images using both lossless and lossy compression, so you get 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 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)

Eliminate common PageSpeed warnings and improve layout stability with automatic image sizing. Smush dynamically resizes images to perfectly fit their containers, regardless of original size, helping fix the “Properly size images” warning in Google PageSpeed Insights.

It also automatically adds missing width and height attributes to your images, improving rendering speed and reducing layout shifts. This helps you meet the “Ensure images have explicit width and height” recommendation without any manual work.

Optimize your entire site, automatically

Smush works across your whole site to optimize images as you upload them and maintain performance over time without manual work.

• Optimize images automatically on upload
• Compress images in bulk or individually
• Works with your existing media library
• No need to re-upload images
• Enable image lazy load across your site
• Convert images to WebP and AVIF
• Deliver images with an integrated image CDN
• Automatically resize and serve correctly sized images
• Optimize images outside the media library with Directory Smush

Built for performance

Smush improves page speed and overall performance by reducing image weight and improving how images are delivered.

• Reduce page load times
• Improve user experience
• Better performance for image-heavy pages
• Supports image lazy load and preload images (PRO) for faster perceived performance

Works with your existing setup

Smush is built to work with your current WordPress setup, including popular themes, page builders, and plugins.

• Compatible with Gutenberg, Elementor, WPBakery, and more
• Works with WooCommerce stores
• No need to change your workflow
• Easy to enable and configure

Designed to be simple

You don’t need to be a performance expert to optimize images with Smush.

• Works out of the box
• Simple settings when you need them
• No technical knowledge required
• Safe to use on any site

Why choose Smush?

There are plenty of image optimization plugins, but Smush focuses on making it easy to optimize images, compress images, and improve performance without complexity.

• Trusted by over 1 million WordPress users
• Built specifically for WordPress
• Regular updates and improvements
• Backed by the WPMU DEV team

Get started in minutes

Install Smush, activate it, and start to compress images, optimize images, and enable image lazy load right away. Most sites see improvements immediately without changing how they upload or manage images.

About Us

WPMU DEV is a premium supplier of quality WordPress plugins, services and support. Learn more here:
https://wpmudev.com/

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Hey, one more thing… we hope you enjoy our free offerings as much as we’ve loved making them for you!

Contact and Credits

Originally written by Alex Dunae at Dialect (dialect.ca, e-mail ‘alex’ at ‘dialect dot ca’), 2008-11.