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Free Plugin by Mecanik1337 v1.5.9

Cloudflare Image Resizing

Optimize images on-the-fly using Cloudflare's Image Resizing service, improving performance and core web vitals.

Cloudflare Image Resizing

The facts

Rating
4.5★ from 17
Active installs
200+
Price
Free
Last updated
11 Mar 2026
Added
Mar 2022
Requires WP
5.0
Tested up to
WP 6.9.7
Requires PHP
7.0
Downloads
18,165

Our analysis

AI-assisted

Cloudflare Image Resizing is a WordPress plugin that optimizes and resizes images dynamically using Cloudflare's services. It enhances site performance by delivering images in formats like AVIF and WEBP from Cloudflare's global locations, improving load times and user experience.

The plugin works by changing the URLs of images in your site's HTML to point to Cloudflare's Image Resizing service. This process eliminates the need for multiple image sizes on your server, reducing load and bandwidth usage, which is beneficial for sites with numerous images or heavy traffic.

Best for: This plugin suits WordPress users looking to improve site speed and image delivery without compromising server performance.

What it does well

  • Dynamically optimizes and resizes images
  • Delivers images from Cloudflare's CDN for faster loading
  • Reduces server load and conserves bandwidth
  • Enhances image quality compared to standard WordPress cropping
  • Compatible with various themes and plugins

Where it falls short

  • Requires Cloudflare Image Resizing feature to be enabled
  • May need configuration adjustments for sub-folder installations
  • Limited information on support and troubleshooting

Verdict

Cloudflare Image Resizing offers a straightforward solution for optimizing images and enhancing website performance, making it a useful tool for image-heavy sites.

From the developer

Mecanik1337's own description of Cloudflare Image Resizing, lightly tidied.

Elevate your site’s performance with this plugin that dynamically optimizes and resizes images using the Cloudflare Image Resizing service.

Experience a significant speed boost by delivering AVIF/WEBP images from Cloudflare’s global locations directly to your users’ browsers.

The plugin utilizes the fastest available PHP functions, without any database calls, ensuring minimum overhead in performance. Your website’s speed will not be compromised, but it will noticeably improve.

Benefits

  • Refines your images, delivering higher clarity and enhanced quality, as opposed to standard WordPress cropping which often reduces image quality.
  • Supercharges your website speed, offering users an improved, faster experience by loading images from Cloudflare CDN, far quicker than traditional servers.
  • Boosts your SEO significantly due to superior website performance and speed.
  • Relieves your web hosting of heavy load, as asset loading is a prominent issue for servers, particularly Apache.
  • Conserves substantial bandwidth on your web hosting, an especially noticeable benefit for websites featuring numerous images/photos.

How does this work?

The Cloudflare Image Resizing plugin for WordPress enhances your site’s speed and performance by automating image resizing using Cloudflare’s advanced technology. But how exactly does this work? Let’s simplify it.

Usually, when you upload an image to your WordPress site, it creates multiple sizes of the image to fit different screen sizes, which can slow down your site. This plugin eliminates that issue.

The plugin taps into WordPress’s image management functions and changes the final URLs of the images in your site’s HTML code. Instead of pointing to the images on your server, these URLs now point to Cloudflare’s Image Resizing service.

When users visit your site, they aren’t just served images. Cloudflare resizes and optimizes these images on-the-fly, ensuring they’re perfectly sized for their device, enhancing load times and user experience. All this happens behind the scenes, making your website faster without any extra effort from you!

Current features

  • Substitutes all attachment/single image source URLs.
  • Replaces all multiple image source set URLs.
  • Revises all other image source URLs found within the content.
  • Provides the original image to Cloudflare Image Resizing service for efficient cropping.
  • Supplements missing image default sizes (width/height), enhancing Google Page Insights scores.

Compatibility

  • Latest WordPress and PHP 7+
  • All general themes
  • MAI Themes and Genesis Framework
  • DIVI Themes
  • Content Areas (formerly Template Parts)
  • Editor plugins like Visual Composer
  • Optimization plugins like WP Rocket

Notes

  • Before using this plugin please ensure you have turned ON the Cloudflare Image Resizing feature for your domain.
  • If your WordPress resides in a sub-folder, adjust the plugin settings by specifying the folder name.
  • You have the option to tweak quality settings, though it’s generally best to stick with the default configuration.
  • If images aren’t being re-written as expected, consider enabling more “hooks”. If the issue persists, feel free to open a support ticket.
  • The plugin allows for whitelisting of images sourced from platforms like Facebook, Twitter, Instagram, PayPal, etc.

Read the full description on the official page →

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