FWS On-Demand-Resizer
Smart on-demand image resizer for WordPress.
Consider an alternative
FWS On-Demand-Resizer shows warning signs in 2026 — compare the alternatives below before installing. It runs on 30+ sites and was last updated 1 year ago, and scores 33/100 on our health check.
- Small user base (30+ active installs)
- Very few reviews so far
- No update in over a year
- Only tested up to WordPress 6.8 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where FWS On-Demand-Resizer stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| images | >100 |
| resize | >100 |
| resizer | #19 |
| resizing | #95 |
| smart | >100 |
Version adoption
Share of active sites per release.
About FWS On-Demand-Resizer
From the official readme · v0.5.2Description
This plugin is solution for well known flaw in WordPress architecture:
automatic resizing uploaded images in each of registered media sizes.
Although price of hosting space is low and we have gigabytes available that can be issue if you have dozen
(or more) registered sizes and because of that your backup files became larger than 10Gb.
Sooner or later you will be in situation to download (or even worse – to upload) that backup file.
Our analysis shows that vast majority of resized thumbnails are not used anywhere in website.
For typical theme with WooCommerce and additional 3 custom media sizes that percentage can be over 90%,
with 6 custom media sizes it is over 96% !!!
Because of that developers are often uncomfortable with registering more media sizes trying to find
some workarounds or violating design to accommodate existing similar sizes.
Purpose of this plugin is to eliminate that overhead and allow developer to register as many sizes as he needs.
It will intercept uploading process to prevent creation of thumbnails and intercept getters
(wp_get_attachment_image_src(), get_the_post_thumbnail_url(), the_post_thumbnail(),…) to create thumbnail if needed.
Additionally, it will register in database each created thumbnail allowing WordPress to delete it automatically
when parent image is deleted.
Usage
At “Settings” tab of this tool you can pick individually for which size you want to enable or disable this functionality.
Typically, you will enable it for all sizes.
Button “Delete” on “Utilities” tab will remove all thumbnails for sizes that are handled by this plugin.
That will significantly reduce size of your “uploads” directory allowing new thumbnails to be recreated on demand.
Button “Regenerate all thumbnails” will remove existing and create new thumbnails for all your uploaded images.
Video demonstration:
Contact
Please, send bug reports and feature requests to office@tekod.com
Changelog
0.5.0
Release Date – 24 August 2023
- New – Utility for regenerating thumbnails.
- New – Added setting for tweaking compression level of JPEG images, this can produce slightly lighter thumbnail files.
- Enhancement – Utility for delete all thumbnails now works via ajax, so you can track progress.
- Fix – Improved performances by preloading metadata.
- Fix – Support for SVG files now cover both image/svg and image/svg+xml mime types.
0.4.0
Release Date – 11 October 2022
- Enhancement – Added internationalization to plugin. Created project at https://translate.wordpress.org/ and translated to Serbian and Dutch.
- Fix – Improved performances while handling too small images.
0.3.0
Release Date – 28 November 2021
- Enhancement – Added compatibility with “Regenerate Thumbnails” plugin. Thanks to Florian Reuschel.
- Enhancement – Added compatibility with “SVG Support” plugin. Thanks to Florian Reuschel
- Enhancement – Added debug logging feature.
- Dev – Added filter “fws_rod_avoid_mime_types” to specify mime-types that have to be skipped by Utilities/Delete feature.
- Dev – Added filter “fws_rod_enable_sizes” to configure plugin to handle specified image-sizes.
- Dev – Added filter “fws_rod_disable_sizes” to configure plugin to avoid handling specified image-sizes.
0.2.2
Release Date – 19 November 2021
- Fix – Fixed bug in handling core image sizes (thumbnail, medium, large).
For developers
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Best FWS On-Demand-Resizer alternatives
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FAQ
FWS On-Demand-Resizer: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 17, 2026
Is FWS On-Demand-Resizer free?
Yes. FWS On-Demand-Resizer is free to download and use from the official WordPress.org plugin directory.
Is FWS On-Demand-Resizer safe to use in 2026?
FWS On-Demand-Resizer shows warning signs in 2026 — compare the alternatives below before installing. It runs on 30+ sites and was last updated 1 year ago, and scores 33/100 on our health check.
How many websites use FWS On-Demand-Resizer?
FWS On-Demand-Resizer is active on 30+ WordPress websites and has been downloaded 2,374 times since it launched in September 2020. It was downloaded 78 times in the last 30 days.
Does FWS On-Demand-Resizer work with WordPress 7.1?
FWS On-Demand-Resizer is officially tested up to WordPress 6.8.11, while the latest release is 7.1.3. It may still work, but try it on a staging site first.
What PHP version does FWS On-Demand-Resizer need?
FWS On-Demand-Resizer requires PHP 7.0 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was FWS On-Demand-Resizer last updated?
The latest version, 0.5.2, was released on October 14, 2025 (1 year ago).
Who makes FWS On-Demand-Resizer?
FWS On-Demand-Resizer is developed and maintained by Tekod lab..
What are the best alternatives to FWS On-Demand-Resizer?
The most popular alternatives to FWS On-Demand-Resizer are Autoptimize (800K+ installs), WebP Express (300K+ installs) and Responsive Lightbox & Galle… (100K+ installs).
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