Perfect to avoid regenerating all thumbnails

This is definitely a must have plugin if you’ve changed themes or installed a plugin that creates custom image sizes. The traditional method would be to regenerate all thumbnails. This is good if you’ve got a small blog, but if you’re running a huge site, especially dating back a decade, you definitely don’t want to do that.

OTF Regenerate Thumbnails works perfectly for this reason and generates thumbnails whenever the images are requested.

That’s why I recommend this to be used in conjunction with my plugin Contextual Related Posts