Disable Thumbnails, Threshold and Image Options

Description

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WordPress generates several image sizes every time you upload a photo. Most themes and plugins add even more. If you’re not using all of them, they waste disk space and slow down uploads for no reason.

This plugin gives you a simple set of toggles under Tools to turn off what you don’t need:

  • Thumbnail sizes — Disable any default (thumbnail, medium, medium_large, large) or custom size registered by your theme or other plugins (WooCommerce, etc.).
  • Image threshold — WordPress scales down images larger than 2560 px. Change that limit or disable it entirely so originals are kept as-is.
  • JPEG quality — WordPress compresses JPEGs to 82% by default. Set your own value between 1 and 100.
  • EXIF rotation — Some cameras store orientation in EXIF data and WordPress rotates accordingly. Turn that off if it causes problems.

How it works

When you first activate the plugin it reads the current WordPress settings (including anything set by your theme or other plugins) so nothing changes out of the box. From that point on, the plugin takes over and you control everything from the settings pages.

After you change settings

You’ll need to regenerate thumbnails so the changes apply to images you already uploaded. We recommend:

Screenshots

  • Image Sizes — toggle any thumbnail size on or off.
  • Image Quality — set the JPEG compression level.
  • Image Threshold & EXIF — change or disable the big-image threshold, stop EXIF auto-rotation.

Installation

  1. Upload the plugin files to /wp-content/plugins/ or install directly from the WordPress plugin screen.
  2. Activate through the Plugins page.
  3. Find the settings under Tools: Image Sizes, Image Quality, Image Threshold & EXIF.

FAQ

Why should I disable thumbnail sizes?

Every size WordPress generates takes up space on your server. If your theme only uses two or three sizes, the rest are just wasted storage. Disabling them means faster uploads and less disk usage.

Do I need to regenerate thumbnails after changing settings?

Yes. Changes only apply to new uploads. To update existing images, use a plugin like Regenerate Thumbnails or run wp media regenerate from WP-CLI.

What does «Disable Threshold» do exactly?

Since WordPress 5.3, any image wider or taller than 2560 px is automatically scaled down and the original is saved with a -scaled suffix. Disabling the threshold keeps your originals untouched. You can also set a custom value (e.g. 4000 px) instead of disabling it entirely.

What happens if another plugin also sets JPEG quality?

The plugin compares your setting against the WordPress default (82%) and shows an info message below the field. Since 0.7.0 the conflict detection is safer and won’t interfere with other plugins.

Is this plugin compatible with WooCommerce?

Yes. WooCommerce registers its own image sizes and they’ll appear in the Image Sizes list so you can disable them individually.

Does the plugin affect the front end?

The settings pages are admin-only. The only thing that runs on the front end is a lightweight filter registration (no database queries) that tells WordPress which sizes to skip and what quality/threshold to use.

Reviews

24. August 2024 1 reply
Simply Grate plugin with no «super cool» ui – just native options page ui (nice!) and… it works on different setups – I’m using it with «Force Regenerate Thumbnails» and just in the last few days I’ve recovered over 60GB (now 8GB before 72GB). I’ve tried a lot of plugins, but this is the only one that really works with Force Regenerate Thumbnails.
5. April 2024 2 replies
But non the less, 5-Stars for clean, errorless code, works without conflict! [ For any future user seeing this, on Image Sizes Page, Toggle ON (blue light) for thumbnails you do NOT want regenerated. ]
27. März 2024
Hi buddy, at first I installed another plugin because there are a few thousand active installations, but since it didn’t do what I wanted, I installed your plugin and tadaaa, I could see all the resizes of the theme woocoomerce etc, in the other plugin they were not visible. I wish you continued work and success, I want to give you some advice, if you take it into consideration, you will make your users more satisfied with the frontend. Combine the Image sizes | Image Quality | Threshold & EXIF menus so that you can navigate from a single screen instead of separate pages Image sizes > Image Thumbnails > In the Settings section, it would be better if you add 150×150 scaling in parentheses next to Thumbnail, Medium, Large. In Image sizes > Image Thumbnnails > Settings we can activate and deactivate the buttons, but it is not clear what function this does, you need to add a note in the same window (activate the buttons to block the sizes you want to prevent from loading).
Read all 5 reviews

Contributors & Developers

“Disable Thumbnails, Threshold and Image Options” is open source software. The following people have contributed to this plugin.

Contributors

“Disable Thumbnails, Threshold and Image Options” has been translated into 2 locales. Thank you to the translators for their contributions.

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Changelog

0.7.0

  • Improved accessibility: toggle switches are now fully keyboard-navigable with visible focus indicators and screen-reader labels.
  • Better compatibility with third-party plugins on the settings pages.
  • Code cleanup: updated class and method naming, added documentation, improved formatting throughout.
  • Improved form field accessibility (aria-describedby, corrected input constraints).
  • Internal: all settings page URLs, option names and stored data are unchanged — fully backward compatible.

0.6.5

  • Bugfix.

0.6.4

  • Bugfix, removed option full.

0.6.3

  • Fix for version check and update old settings.
  • WordPress & PHP Requirements: updated minimum to WordPress 5.4+ and PHP 7.4+.
  • Code modernization and performance optimization.
  • Smart initialization: plugin imports current WordPress settings on first activation.
  • Intelligent debug system with conflict detection.