描述
Automatically optimize uploaded images (jpg, png, gif, webp, svg, avif) using the Spatie image-optimizer library and binary files on your host system.
New uploaded images with all image sizes (thumbnails) will be optimized automatically.
Previously uploaded images can be updated in two ways:
- Use the command line interface (cli) and run
wp media regenerate, which also triggers the optimization chain. If you don’t have cli access, some other plugin, that regenerates existing thumbnails should work, too (not tested, yet). - The media library has a new column “File size” in the list view, which displays the new and the old file size. If an image is not optimized, there is a link named “Optimize” to run the optimizer directly.
Warning: Images are replaced with the optimized ones. Create a backup before testing this plugin. If this is a deal-breaker for you, don’t use it.
Important: If the needed binary files aren’t installed, this plugin won’t optimize anything. Don’t use it, if you don’t know, how to install them or if your web hoster doesn’t provide them.
Notice: WordPress has no support for SVG and AVIF files. Technically this plugin can optimize them, but I didn’t run any tests with plugins, that add SVG/AVIF support to WordPress. I was able to optimize svg and avif files automatically in a local test setup (see prepare-and-run-tests.sh in the tests folder and search for enable_svg_avif_upload).
For more information and notes about development, checkout the project README.md file on Codeberg
Optimization tools
Spatie image-optimizer will use these optimizers if they are present on your system:
At least jpegoptim and optipng should be installed.
You can find information about how to install the binary files in the Spatie image-optimizer README.md file.
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