Title: Generate missing sizes only?
Last modified: December 12, 2023

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# Generate missing sizes only?

 *  Resolved [Tessa (they/them), AuRise Creative](https://wordpress.org/support/users/tessawatkinsllc/)
 * (@tessawatkinsllc)
 * [2 years, 6 months ago](https://wordpress.org/support/topic/generate-missing-sizes-only/)
 * Hello!
 * I’ve got a setup that uses [Custom Image Sizes by 99 Robots](https://wordpress.org/plugins/custom-image-sizes-by-99-robots/)
   to create sizes, [Crop-Thumbnails](https://wordpress.org/plugins/crop-thumbnails/)
   so that we can modify them, and [EWWW Image Optimizer](https://wordpress.org/plugins/ewww-image-optimizer/)
   to optimize the files. However, there are a few discrepancies where some older
   articles don’t have a certain file size created and while I could use the Crop-
   Thumbnails plugin to generate them individually, I was looking for a solution
   that could automatically loop through the images in the library and generate 
   just the missing sizes without affecting the existing ones (and hopefully EWWW
   Image Optimizer would pick up on the size being newly created and optimize it
   automatically too).
 * There’s over 8k items in the media library and 20 registered sizes, so I imagine
   it might need to be done in batches since one long script might time out.
 * I know it’s not a feature available in your plugin now, but do you think it might
   be added? If not, I’ll figure something else out. Thanks!

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Support [adamewww](https://wordpress.org/support/users/adamewww/)
 * (@adamewww)
 * [2 years, 5 months ago](https://wordpress.org/support/topic/generate-missing-sizes-only/#post-17281226)
 * Hi Tessa,
 * Sorry for the delay in responding!
 * As you mention there isn’t really anything in currently, and I’m not sure what
   might be added. We adopted this plugin as we found it useful and it had be mostly
   abandoned. So right now we’re just in “maintain” mode, but I appreciate the idea!
 * That having been said, and I apologize if I’m missing a step here, but could 
   you select the sizes you want generated in the Resizes tab of EWWW IO and then
   kick off a Force Regenerate Thumbnails? FRT deletes all of the thumbnails before
   regenerating them and it will only build the ones that you select in EWWW (well,
   I guess I mean the ones you don’t select, since the checkbox is for “Deactivate
   Creation”). It’s kind of a heavy way to do it, but it would get where you wanted
   in the end I think.
 *  Thread Starter [Tessa (they/them), AuRise Creative](https://wordpress.org/support/users/tessawatkinsllc/)
 * (@tessawatkinsllc)
 * [2 years, 5 months ago](https://wordpress.org/support/topic/generate-missing-sizes-only/#post-17281365)
 * Thanks for responding! And no need to apologize, you’re a human 🙂 Also, thank
   you for adopting it! I’ve adopted some too and I totally understand!
 * I did suggest that to my supervisor and he was like, “I don’t want to do that,”
   so I see myself writing a looping script in the near future lol
 *  Plugin Support [adamewww](https://wordpress.org/support/users/adamewww/)
 * (@adamewww)
 * [2 years, 5 months ago](https://wordpress.org/support/topic/generate-missing-sizes-only/#post-17289631)
 * OK! Well I hope it’s not too much of a burden! I’ll resolve this for now but 
   if you have any other questions, please feel free to open a new thread!

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Generate missing sizes only?’ is closed to new replies.

 * ![](https://ps.w.org/force-regenerate-thumbnails/assets/icon-256x256.jpg?rev=
   2816275)
 * [Force Regenerate Thumbnails](https://wordpress.org/plugins/force-regenerate-thumbnails/)
 * [Support Threads](https://wordpress.org/support/plugin/force-regenerate-thumbnails/)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/force-regenerate-thumbnails/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/force-regenerate-thumbnails/reviews/)

 * 3 replies
 * 2 participants
 * Last reply from: [adamewww](https://wordpress.org/support/users/adamewww/)
 * Last activity: [2 years, 5 months ago](https://wordpress.org/support/topic/generate-missing-sizes-only/#post-17289631)
 * Status: resolved