Local WebP optimizer for WordPress. Free converts images to WebP; Pro adds AVIF and site-wide image tools.
Alternatives to XO Magic Box Light
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
Relevant replacements
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
Celero Adaptive Speedv3.7.31
Finds what slows your site and fixes it one change at a time: tested out of visitors' sight, kept only if all works, undone if the site slows.
Find out exactly WHY your WordPress site is slow — not just that it is.
All-in-one WordPress speed optimizer for every site type—page cache, asset control, lazy media, WebP, HTML minify, CDN rewrite, admin speed tools, and …
Lumeo Vitalsv1.2.1
Optimize your Core Web Vitals (LCP, INP, CLS) with one click. A lightweight performance engine for modern WordPress sites.
Speed up WordPress with safe caching, CSS/JS optimization, WebP/AVIF images, Core Web Vitals audits and smooth scrolling.
Improve WordPress speed and Core Web Vitals with page cache, WebP, minification, database cleanup and built-in performance diagnostics.
Monitor Core Web Vitals (LCP, INP, CLS) & run a Google PageSpeed Insights speed checker directly inside WordPress. No API key required.
Solid Performance is a no-code solution for increasing the page performance of your WordPress website.
Run PageSpeed scans, diagnose bottlenecks, and safely optimize images, assets, caching, critical CSS, and LCP.