5 Best WordPress Image Compression Plugins Compared

Looking for the website’s latest WordPress image compression plug-in? Image compression plugins make it simple to format images for greater speed and performance in WordPress. In this article, we compared the best plugins for WordPress image compression.

Best WordPress image compression plugins

How do you need a compression plugin for your WordPress image?

Images are bigger than plain text so they take longer to load and can slow down your website.

You probably heard the saying, however: “a picture worth a thousand words.” The images make your content more interactive and engaging.

You need to optimize your images for the Web to improve your WordPress website speed. The easiest way to achieve this is to use Photoshop or other image processing tools before posting the file to WordPress. This gives you a great deal of power over the picture content on your website.

Not all people work happily with the picture processing software, however. Sounds like a lot of work to others automate any single picture they upload.

Fortunately, there are several compression plugins for WordPress pictures that can support you with this. These plugins transform the images by compressing them dynamically and making use of the smaller version on the website.

Having said that, let ‘s look at the best compression plugins for WordPress images, and how they stack up in terms of image processing, speed , and efficiency.

  1. reSmush.it

reSmush.it is the perfect compression plugin for WordPress images. It allows you to optimize the upload images automatically as well as offer a bulk optimization option for older images.

This uses the reSmush API to optimize images and allows you to pick the level of optimization for your uploads. The downside is that it has no different degrees of compression. This also restricts caching to uploads of a scale of less than 5 MB. In case you need to display an image in full size, you should remove single images from compression.

2. EWWW Image Optimizer

EWWW Image Optimizer

EWWW Image Optimizer is a great option for plug-in compression of WordPress image. It’s easy to use and can optimize the images that you upload on the fly automatically. It can also bulk upload your previously uploaded images, and customize them.

This does all the compression on your own servers, which means you don’t have to sign up to get an API key for an account. It can also customize images created from other WordPress plugins and stored outside of the directories of your media library. Using the plugin does not require an account, but for extra functionality you should sign up for their API.

3. Compress JPEG & PNG images

Compress JPEG & PNG images

The team behind TinyPNG produces Compress JPEG & PNG, so you’ll need to create an account to use the plug-in. For the free account, you can automate only 100 photos every month. Upon upload, it can automatically compress images, and you can optimize older images in bulk as well.

The plugin settings let you choose which image sizes to optimize. In addition, you can limit your original uploads to a maximum scale. The plug-in will automatically resize images bigger than that size.

4. ShortPixel Image Optimizer


ShortPixel Image Optimizer is yet another useful compression plugin for WordPress images. By supplying your email address it allows you to get an API key. The simple free account requires you to store up to 100 photos every month, and to expand that cap you would need to upgrade to their paying plans.

As soon as you activate the app, it begins compressing images and stores your original files in a separate tab. It also enables you to compare the original file to the compressed version, to see the difference in quality. ShortPixel is filled with specialized features, and helps you to choose comparative formats.

5. WP Smush

WP Smush

WP Smush is yet another popular compression plugin for WordPress images. It compresses upload images automatically and can also be used to compress and optimize your older image files. You may also set the maximum file width, and by being compact, the files can shrink down to more acceptable sizes.

The plugin’s free version doesn’t allow you to build an account using their API key. The bulk optimization function helps you to optimize up to 50 images at a time, and the bulk optimizer can be re-run to compact more photos.

Comparison Check results for plugins for file compression

Now that you are aware of the different compression options for the WordPress file, let ‘s look at how they compare with each other in terms of efficiency.

To measure this, we ran test using each of these plugins by uploading the same image.

JPEG Image Compression Test

For our tests we used the following JPEG image which is 118 KB in file size.

JPEG test image

We have not changed any of the plugin settings and checked the compression with settings out of the case. Here are our findings from the test:

PluginCompressed SizeSaved (%)Method
EWWW Image Optimizer112KB5%Lossless
Compress JPEG & PNG images114.7KB2.8%Lossy
ShortPixel Image Optimizer69.2KB41.94%Lossy
WP Smush112KB5%Lossless

PNG Image Compression Check

Next we decided to test a PNG picture and see if it is configured by our contenders.

For the test we used the following PNG image, and the file size is 102 KB.

PNG test image

Here are our findings from the test:

PluginCompressed SizeSaved(%)Method
EWWW Image Optimizer97.5KB1.9%Lossless
Compress JPEG & PNG images34.3KB64%Lossy
ShortPixel Image Optimizer37KB63.5%Lossy
WP Smush99KB2.9%Lossless

Which is WordPress Best Image Compression Plugin?

If you are not looking for flexible options in your image compression plugin, then reSmush.it will give you the best performance results by making a real difference in the size of the image file.

If you’re willing to pay for compression of the file, then you can try ShortPixel that performed very well in our testing.

EWWW Image Optimizer is a great plugin with flexible settings, but you’ll need their paid API key to gain access to levels of compression that make the difference.

We hope you have found this list of the best plugins for compression of WordPress images helpful. You may also like to see our list of may issues with photos in WordPress and how to address them.

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