This quick Regenerate Thumbnails tutorial fixes images that look soft, stretched or badly cropped after a theme change. Every upload creates several resized copies at the sizes your old theme wanted, and a new design often needs different ones. In about four minutes you'll rebuild those sizes across your whole media library.
What you'll learn
When you switch themes or change your image-size settings, your existing uploads still only have the old dimensions, so WordPress stretches or crops them to fit and they look wrong. The free Regenerate Thumbnails plugin rebuilds every size on demand so old images look crisp in a new layout. This course explains exactly why thumbnails break in the first place, then shows both targeted and bulk regeneration so you can fix one image or an entire library. After it you'll never have to live with blurry featured images after a redesign.
Inside the course
- Why Thumbnails Break & Installing the Plugin
- Regenerating: Targeted & Bulk
Who this course is for
This is for beginners and anyone who has just switched themes or changed image sizes and noticed their photos look off. No technical background needed, and the whole course takes only a few minutes. If you maintain sites for clients, it's a handy fix to have in your back pocket. Free written tutorials cover it too.
Frequently asked questions
When do I need to regenerate thumbnails?
Will regenerating thumbnails delete my original images?
Is this course free?
Every one of the 2 lessons is free to watch — you just need a free WP Tutoring account. No card, no trial clock.
- All 2 lessons in this course
- Follow along on a clean WordPress install
- Keep your free account forever