5 Best WordPress Image Optimizer Plugins | Chiphost Blog

We are finding the best WordPress image optimizer plugins for you. All plugins are easy to handle and quickly migrate your WordPress website. All free plugins but the same features as premium.

Why Do You Need to image optimize Your WordPress?

Image optimization is a very important part of website making. If you do not optimize your image, you can get into trouble.

First, Your website may open very slowly. If you use shared hosting and your website has big pictures then the website will be slow.

Second, Your website will lose more bandwidth. Many times your website may hang. Your server response time will increase. If your server response time increases, your website will open late and your website will not be acceptable to Google and many more search engines.

Currently, there are more mobile users and so it is very important to optimize the image to make our websites more mobile-friendly.

For those new bloggers, We suggest you use webp images. Webp image format is very light and quickly loading your website. Webp images will increase the loading speed of your website.

This is a JPG picture

jpg image test
500×400 JPG

This is a Webp picture

Webp image test
500×400 webp

We are converting a JPG image of the same dimension to webp. JPG image dimension is 500×400 but the JPG image size is 53.1 KB and webp image size is 7.06 KB.

Currently, there are some plugins automatically converting to Webp. Today we are going to talk about some of the best WordPress image optimizer plugins.

1. EWWW Image Optimizer

EWWW Image Optimizer

EWWW Image Optimizer is another useful WordPress image compression plugin. It is automatic to optimize your images. It is not a free plugin but the first 500 images optimize absolutely free.

Webp setting

This plugin webp setting is very simple. When you upload images, the images will be automatically converted to webp but you will need to use the Bulk Optimizer for existing uploads. This plugin has 4.7 out of 5 stars ratings and 800,000 active installations.


  • Optimize unlimited file size
  • Pixel perfect optimization
  • Convert JPG to PNG
  • Convert PNG to JPG
  • Convert GIF to PNG

Supported Version

  • Requires PHP Version: 5.6 or higher
  • WordPress Version: 5.2 or higher

Go to EWWW Image Optimizer download today.

2. Smush

Smush WordPress Image Optimizer Plugin

Smush is the best WordPress image optimizer plugin. It is automatic resizes and optimizes your WordPress images. You can use the premium version to better optimize your images.

This plugin doesn’t convert JPG to Webp but JPG compress is much better. It is automatic compresses your old JPG images. It has a lazy load and CDN facility but CDN features are not available for free.

Smush setting is very simple. This plugin has 4.8 out of 5 stars ratings and 1 million active installations.


  • Compress PNG, JPEG, and GIF files
  • Gutenberg Block Integration
  • Optimize all images up to 5MB (No monthly limits)
  • You can select any folder to hold optimize images
  • Incorrect Size Image Detection

Supported Version

  • Requires PHP Version: 5.6.20 or higher
  • WordPress Version: 5.2 or higher

Go to Smush download today.

3. Robin image optimizer

Robin image optimizer

Robin image optimizer is a popular WordPress image optimizer plugin. This plugin reducing the size of the images very faster without any loss of quality. It has a scheduled optimization option. You can set 30 minutes, the plugin automatically runs after 30 minutes.

This plugin converts images to WebP but this feature is not available to the free version. It is free images optimize size limit 5 MB but you can make it unlimited.

Total five type compression mode available in this plugin. Lossless, Lossy, High, G PageSpeed, and custom but G PageSpeed are not free. You want to maximize the speed of your web page use the lazy loading option. This plugin optimizes images many more dimension, you can select if you want. This plugin has 4.7 out of 5 stars ratings and 90,000 active installations.


  • Bulk optimization
  • One click images optimize
  • Original images backup facility
  • Choose compression mode normal, regular, high
  • Detailed statistics on optimized images

Supported Version

  • Requires PHP Version: 5.4 or higher
  • WordPress Version: 4.8 or higher

Go to Robin image optimizer download today.

4. ShortPixel Image Optimizer

ShortPixel Image Optimizer

It is most valuable WordPress image optimizer plugin. Get the API key via your email and start optimizing your images. Three type compression mode available this plugin like lossy, glossy, lossless. You can resize large images in a matter of seconds.

webp settings

This plugin converted images to WebP format for free. WebP images can be up to three times smaller then PNGs and 25% smaller then JPGs.

ShortPixel save original images after optimize your images. It has supported Cloudflare API. This plugin has 4.6 out of 5 stars ratings and 200,000 active installations.


  • Convert PNG images to JPEG
  • CMYK to RGB conversion
  • Optimize Retina images
  • Optimize other thumbs
  • Optimize PDFs
  • Optimize media on upload
  • Process in front-end
  • More thumbnail sizes

Supported Version

  • Requires PHP Version: 5.3 or higher
  • WordPress Version: 3.2 or higher

Go to ShortPixel Image Optimizer download today.

5. reSmush.it

reSmush.it WordPress Image Optimizer Plugin

ReSmush.it is the absolutely free WordPress image optimizer plugin. This plugin optimizer & compress upto 5 MB. You can set custom image quality.

ReSmush accept all type images like JPG, PNG and GIF files but WebP not converted. This plugin has 4.3 out of 5 stars ratings and 100,000 active installations.

Supported Version

  • Requires PHP Version: 5.3 or higher
  • WordPress Version: 4.0 or higher

Go to reSmush download today.

I hope this helped you what is the best image optimizer plugin in WordPress. After installing WordPress step by step guide install plugin in WordPress.

Saurav Sen

Saurav Sen

Hi, I am a professional blogger and web developer. So I also share experiences with web development tutorials and blogging tips and including writing about HTML, CSS, JavaScript, Jquery, Ajax, PHP, and MySQL.