Best custom sizes plugins for WordPress
The most popular custom sizes plugins for WordPress in November 2026, in WordPress.org’s own popular order, which follows active installs. Simple Image Sizes leads with 60K+ active installs, ahead of Smart Thumbnails GW (fewer than 10). All 2 plugins tagged “custom sizes” are below, with figures from WordPress.org that update every day.
Installs aren’t everything: a recent release, a “Tested up to” that matches the current WordPress, and support threads that get resolved show a plugin is looked after. Open any plugin for its downloads, rank history and alternatives.
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Top 2 custom sizes plugins
- 1.
Simple Image SizesThe most installed custom sizes plugin, with 60K+ active installs. Rated 4.6 from 91 reviews, updated 2 months ago.
- 2.
Smart Thumbnails GWFewer than 10 active installs. No reviews yet, updated 5 months ago. Tested only up to WordPress 6.8.12.
All 2 plugins tagged “custom sizes”
Simple Image Sizes
Down in the last 7 days:1#660by Nicolas Juen2 months ago
This plugin lets you create custom image sizes for your site. Override your theme sizes directly on the Media settings page, regenerate thumbnails, an …
- Installs
- 60K+
- Rating
- 4.6(91)
- Downloads
- 233/day
Smart Thumbnails GW
Up in the last 7 days:7,792#63,790by Mohammadreza Maghsoudipour5 months ago
An intelligent image management plugin that registers custom sizes for each post type and regenerates them only when needed for featured images.
- Installs
- <10
- Rating
- –
- Downloads
- 0/day