TOOL1 Image Optimizer

Image Optimizer by TOOL1 makes every new image you upload lighter and faster, and shows you what can still be improved in your existing media library.

  Images are processed directly on your server. There are no external services, no credits and no limits on the number of images.

  Optimize every upload automatically

  - Automatic resizing: large photos are scaled down to sensible maximum dimensions, for example 1280×1280 px.

  - Compression: you choose the JPEG/WebP quality. PNG files are compressed on upload.

  - WebP conversion: a .webp copy is created for every upload and served automatically through .htaccess rules on Apache and LiteSpeed, including CSS background images.

  - Image sizes control: choose which responsive sizes WordPress generates, or turn them off completely. You can also prevent hard cropping.                                                                                                                                                                                  │                                                                                         

  See where your library can improve

  - Library scan and dashboard: unoptimized images, potential savings, orphan files, ghost entries, responsive sizes and WebP status, all on one screen.

  - Single-image WebP: generate a WebP version of any image straight from the Media Library. 

  - Extras: an Upload & Optimize screen, a Featured Image column, a dashboard widget and a lifetime savings counter.

  Need to fix your whole library at once?

  Image Optimizer PRO adds bulk optimization, bulk WebP generation, cleanup of orphan and ghost files, size regeneration and <picture> delivery for nginx servers.                                                     

  Requirements: WordPress 5.5+.

  • Version: v13.6.0
  • Updated: 03 Nov 2026

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