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Top 10 Image Lossless Compression Plugins for Speeding Up WordPress

Lossless image compression is a big deal, more often than not, it is the actual image files that slow our site down significantly, and slow sites are known to cause a much higher bounce rate and a much lower level of satisfaction.

WordPress bloggers are one of the most widely known writers that utilize many images in their content, especially so for sites that do list, gallery, and how-to posts daily. The upload folder for pictures can quickly grow huge, so you can see the load time of each web page serving these images. Perhaps, the process of having to optimize each image manually sounds time-consuming, and people just decide not to do it at all.

Thanks to some bright developers and a number of tools, we have a number of free and premium WordPress lossless image compressions plugins available at our disposal, which we will be taking a look at in this post. Please share your own methods and techniques for compressing images in the comment section.

EWWW Image Optimizer

EWWW Image Optimizer

EWWW Image Optimizer, one of the leading lossless image optimization plugins, will automatically optimize/resize all images you upload using the WordPress media manager. You will also be able to use a feature to optimize all your pre-existing images, and have them converted/optimized for the best possible file size and image quality.

EWWW Image Optimizer is built by developers who are highly educated in image optimization and understand how important image optimization can for having your site load faster, use less bandwidth, and optimize overall site performance, not to mention save a ton of disk space which will make it more effecient to make regular site backups.

WP Smush

WP Smush

WPMU DEV have built an image optimization plugin that more than 300,000 WordPress users use. WP Smush optimizes images by removing hidden and junky image data, optimizing the file size without sacrificing its quality. In their own words, the faster you can make your pages, the more likely you’re going to earn attention from search engines, leading to higher rankings and more organic visitors.



TinyPNG is one of the most recognized lossless image compression services that compress both JPG and PNG type files. Up until very recently, the service did not provide a WordPress plugin. Several thousand WordPress users are now using this magnificent plugin to optimize images as they are being uploaded automatically. It would be best to keep in mind that this plugin only allows you to have 500 image optimizations every month. This is actually enough for small/medium sized WordPress blogs. To extend the limit you will need to share your bank details, but even then — the image optimization plans are quite cheap. Those who wish to optimize their images will be happy to learn that a bulk image optimization service is possible, though you may want to look into the limits and their pricing first.


imagify image compression plugin
Whether you are a travel blogger, a photographer or you are a freelance designer, when adding your content to your website, optimize your images first with a convenient plugin. One of such is Imagify. Instead of adding a full-sized image, you can now compress it and make it lighter for your website. Too many large and high-quality pictures stuffing your page can actually lower the performance. After all, there is no real need to include the best possible photography to impress your guests. And if you are selling your work, they will get to download a .zip file anyway.

Imagify seamlessly integrates with WordPress for an even smoother experience. All the material that you upload to your WordPress’ media library will get optimized automatically for your convenience. No need to worry about the heavy load of images anymore, let Imagify do the magic and keep your site’s loading speed intact.


optimole image compression plugin
This image compression plugin for WordPress squeezes pictures in size but not in quality. Instead of editing and optimizing each image manually, you can let Optimole do the work instead of you. When utilizing Optimole, you can still showcase your outstanding works while keeping them friendlier to the performance of your online space. You don’t just want to add many images of the largest sizes to your website and forget about them. It can have a negative impact on your page by slowing it down.

What’s also cool about Optimole is that it operates on its own. In other words, after you set things up, you can completely forget about the plugin. Optimole indeed supports all types of pictures, lazy load, WordPress themes and even page builders. Along with the remarkable free version, Optimole also comes as a premium plugin that unlocks even more features.

Robin Image Optimizer

robin image optimizer wordpress plugin
When it comes to images specifically, compress and lighten them with tools like Robin. This image compression plugin gets its job done in most cases (images should not be larger than 5MB). Not only that, but it keeps the quality almost always intact. With that in mind, you can add tons of new material to your page or blog without affecting the loading speed.

Robin might be a free image optimizer, yet the features are very premium like. Speaking of features, Robin includes automatic optimization, manual mass optimization, backs up raw images and offers three steps of compression. It also provides detailed statistics for every optimized picture.



You can optimize both new and old images with ShortPixel. Once activated, the plugin instantly processes new images uploaded to your website. Bulk optimization will automatically process all your past image gallery with one click. ShortPixel processes images and thumbnails in the cloud, and replace it into your website. It’s simple to use, yet incredibly powerful. However, ShortPixel has one downside. The creators set the monthly limit to be 100 images, which is four times less than TinyPNG. Still a good alternative to have.



After installing Optimus, you can optimize new images that you add to your image library. The servers at Optimus can do this for you. At some point, you lose track of your original images and their content. But, the whole process happens in the background so you don’t have to worry about a thing. You can allocate a new field to each image. This will show how big of a file reduction was taking place. Optimus stands out from other image compression plugins by never losing the quality of your original images. Custom options allow you to keep all the necessary image data without affecting the overall file size. Image Optimizer

resmushit image compression plugin
If you are looking to speed up your WordPress website or blog, compress images with Image Optimizer. After all, fast site load is not only important for a better overall experience, browsing your content, but search rankings, too. Google just does not like slow websites. Thanks to these convenient plugins, you can now optimize all your imagery, JPG, PNG and GIF, as they might represent the bigger part of your website. It happens way too often that page owners are unaware of the heaviness of their website exclusively due to the pictures.

With the use of Image Optimizer, you can now smush your images in just two clicks. Yes, this image compression plugin, of course, supports bulk action. You can also specify the quality of your images in % and optimize files of up to 5MB in size – for free!


wp-optimize image compression plugin
WP-Optimize is more than just an image optimizing tool. It is a free WordPress plugin that helps you optimize your entire website, making it a lot faster for everyone’s enjoyment. Whether you are operating a blog, an eCommerce website, or a corporate page, you can now “clean, compress and cache with WP-Optimize.” With the plugin, you can also only use the image compression function. However, after installing and activating it, you will want to get the most out of it, using all WP-Optimize’s excellent features and functions.

As for image compression, WP-Optimize offers bulk action, auto-compress, restore originals and an option to compress big files. Take image optimization to a new level with WP-Optimize and free your website. Little work is necessary on your end, as WP-Optimize does it all for you. Set configurations and that’s it.

WP Compress

wp compress image compression plugin
After running a website, it might be stuffed with imagery of all shapes and sizes. And if you are not optimizing them right away, your website might start loading slowly. To avoid the inconvenience, you need an image compression plugin. WP Compress is an excellent alternative that does the job well. With this particular tool, you do not really need to do things yourself, as WP Compress’ autopilot works excellently for your convenience.

While you can optimize all your image content in bulk, you can also activate the autopilot that checks your website for new content every hour. When new content appears, it will optimize it immediately. Keep in mind, the first 100 images are entirely free of charge. When you exceed the quota, WP Compress will ask you for $5 per one thousand pictures.

Alex is a freelance writer with more than 10 years of experience in design, development, and small business. His work has been featured in publications like Entrepreneur, Huffington Post, TheNextWeb, and others. You can find his personal writing at The Divine Indigo.

This Post Has 10,676 Comments

  1. Gayatri Mantra says:

    Hello, thank you for summary but I still don’t know which one is the best… is good and simple but does not show me the best results.

    1. Gayatri,

      It depends what you mean by “best results”. It offers lossless compression therefore your images will look exactly the same with the same quality but will be smaller in size. If you have uploaded images that has high resolution it won’t help you because it isn’t resizing images but reducing them in size.

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