These days, a website without images just looks dull and boring. A website with images that aren’t optimized is just as problematic, as they eat up precious bandwidth, slow down just about everything, and ruin the overall user experience.

Every website owner should aim to provide the best user experience possible to their site visitors. Using heavy images that take a long time to load is not the way to deliver a streamlined user experience. If you have heavy images on your site, you probably haven’t optimized the same for search engines. This makes you lose precious UX and SEO points and in turn, you’re dragging down your online business.

In today’s article, we’re going to share with you some of the best free image optimization plugins for WordPress that will help improve the performance of your website. See how they can be of use to you.

Enjoy!

PB Responsive Images

PB Responsive Images

PB Responsive Images is a WordPress plugin that automatically reformats all images in the post content into a format similar to the photo tag proposed by the Responsive Images Community Group on W3.org.

Lazy Load

Lazy Load

This WordPress plugin improves page load time by lazy loading. It uses jQuery.sonar to load an image only when it’s visible in the viewport. It’s a combination of code written by the WordPress VIP team at Automattic, the TechCrunch 2011 Redesign team, and Jake Goldman of 10up LLC.

CW Image Optimizer

CW Image Optimizer

The CW Image Optimizer plugin automatically and losslessly optimizes your images as you upload them to your site. It also optimizes the images that you’ve already uploaded in the past. Because the plugin uses lossless optimization techniques, the quality of the images will remain the same before and after optimization. The only thing that will change is the file size.

Prizm Image

Prizm Image

This plugin for WordPress helps boost your site’s performance by optimizing images while maintaining resolution and visual quality. What’s more, it has no size limit on the files that you can submit for reduction.

EWWW Image Optimizer

EWWW Image Optimizer

EWWW Image Optimizer is a WordPress plugin that automatically optimizes your images as you upload them to your blog. It even optimizes the images you’ve already uploaded, converts images automatically to the file format which will produce the smallest image size, and optionally applies lossless reductions for JPG and PNG images.

SEO Friendly Images

SEO Friendly Images

This WordPress SEO plugin automatically updates all images with proper ALT and TITLE attributes for SEO purposes. If your images don’t have ALT and TITLE already set, this plugin will add them according to the options you set. What’s more, it makes the post W3C/xHTML valid, as well.

Media File Renamer

Media File Renamer

The Media File Renamer plugin updates the name of the image/media, renaming the file name physically and updates all the references to that media in the associated posts, if any. With this plugin, you can bulk-rename all your files simultaneously, or only the flagged files (but we recommend you do the renaming directly through the Media Library).

WP Smush.it

WP Smush.it

This popular plugin for WordPress allows you to optimize images by compressing them individually in the Media Library or in bulk from the Media menu in the WP dashboard. The plugin integrates WordPress with Smush.it API, which is the platform that allows the plugin to strip additional data from JPGs, optimizes JPG compression, converts GIFs to PNGs, and strip unused colors from indexed images. What’s more, the plugin optimizes your images automatically, behind the scenes.

Imsanity

Imsanity

Imsanity is a WordPress plugin that automatically resizes huge image uploads down to a size that’s more reasonable for display in the browser, yet large enough for typical website use. It’s configurable with a max width, height, and quality. When you or a contributor uploads an image that’s larger than the configured size, the plugin will automatically scale it down to the ideal size and replace the original image.

Hammy

Hammy

This WordPress plugin takes your regular content images (only within posts/pages, and not custom post type) and regenerates a number of smaller sized images. When someone visits your site, it will automatically provide them with the most appropriate image, or the smallest one possible. This provides a better user experience, especially when someone is visiting your site using their mobile device.