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The Leading Image Compression Extensions for WordPress in 2026
Uncompressed images can slow your WordPress site more than any other asset. A good compression plugin reduces file size while keeping images sharp, which improves load time, Core Web Vitals, and user experience.
When choosing a plugin, look for these features:
Automatic compression on upload
Bulk optimization for older media
WebP sign-up and delivery
Controls for lossy vs lossless compression
Backup of original images
A smart workflow is: resize images to the real display size, shrink, then serve via a CDN if you have global traffic. Also make sure the plugin does not break thumbnails or retina images.
Do not optimize blindly. Test a few images first and compare quality on mobile screens. The best plugin is the one that fits your site: photographers may prefer gentle settings, while ecommerce stores often benefit from stronger compression. In most cases, smaller files mean faster pages and more conversions.
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