How to Disable Different Image Sizes for WordPress Website?

Updated On : April 14, 2026By : Reading Time : 1 minute

Key Takeaways

  • Nexter Extension allows users to disable generating image sizes on their WordPress website.
  • Disabling image sizes can save valuable resources and improve loading speed.
  • Users can individually disable different image sizes through the Disable Image Sizes section in the Nexter Extension settings.
Table of Contents

By default, WordPress generates multiple image sizes every time you upload an image, which can significantly slow down your site’s loading speed. These different image sizes are created to display images in various sizes across your website.

Generating multiple image sizes can significantly slow down your site’s loading speed as it takes more disk space and server resources. So disabling generating image sizes can help you save valuable resources.

However, there is no option within WordPress to disable image sizes. If you are using the Nexter Extension (Free) plugin, you can easily disable generating image sizes on your WordPress website. 

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How to Disable Image Sizes with the Nexter Extension?

To disable image sizes with the Nexter theme, from the WordPress Dashboard, go to Nexter > Extensions > Performance.

Then go to the Disable Image Sizes section, enable the toggle, and click on the gear icon (⚙).

disable image sizes settings new 1 1

It will open the Disable Image Sizes popup, here you’ll see all the different image sizes your site is generating. 

You can individually disable all the image sizes.

Turn on the toggle for the image sizes you want to disable, then click on the Save button.

disable image sizes popup

About the Author

Photo of Aditya Sharma CMO of NexterWP
CMO at POSIMYTH Innovations · NexterWP · 7 years experience

He has spent years in the WordPress ecosystem building, breaking, and optimizing sites until they actually perform. He works at the intersection of speed, growth, and usability, helping creators ship websites that load fast and convert. An active WordPress community contributor sharing through tools, tutorials, and direct collaboration. Tested practice, not theory.

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Related Frequently Asked Questions

What are the benefits of using the Nexter Extension to manage image sizes?

Using the Nexter Extension to manage image sizes helps streamline your website's performance. By disabling unnecessary image sizes, you save server resources and improve loading times, which can enhance user experience and SEO. This is particularly beneficial for sites with heavy image use, as it reduces the overall load on your server.

Why might my image sizes not be disabling even after following the steps?

If image sizes are not disabling, ensure that you have correctly enabled the toggle in the Disable Image Sizes section of the Nexter Extension. Additionally, check if any caching plugins are active, as they may need to be cleared to reflect the changes. This troubleshooting step is crucial for seeing immediate results.

Does disabling image sizes affect existing images on my site?

Disabling image sizes will not retroactively remove existing images from your media library. It only prevents WordPress from generating new sizes for images uploaded after the setting is changed. If you want to optimize existing images, consider re-uploading them or using a plugin that can regenerate thumbnails.

What is the best practice for managing image sizes on a WordPress site?

The best practice is to disable unnecessary image sizes and only keep those that are essential for your site's design. This helps maintain optimal loading speeds and resource usage. Using the Nexter Extension, you can customize which sizes to keep based on your specific layout needs, ensuring your site runs efficiently.

Last reviewed: April 14, 2026

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