Convert images to AVIF & WebP on-server with true background queue. Boost page speed and Core Web Vitals with zero monthly SaaS fees.
Alternatives to Captain Media Shield
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.
JGWS Media Optimizerv1.8.1
Automatically convert JPG and JPEG images to WebP during WordPress Media Library uploads, with optional original file preservation.
Local WebP optimizer for WordPress. Free converts images to WebP; Pro adds AVIF and site-wide image tools.
Convert JPG/PNG uploads to WebP on your own server. No cloud API, no quotas. Optional HTML rewrite only when .webp exists.
Compress and optimize WordPress images, convert to WebP, and reduce image sizes for faster page loads.
A powerful, safe, and automated bulk image optimizer. Convert JPGs and PNGs to WebP, shrink dimensions, and automatically update content URLs.
Automatically converts JPG and PNG images to WebP format, optimizes size to 100KB-115KB range, updates database URLs, and generates SEO alt text.
Optimize WordPress images locally, convert supported media to WebP, preserve originals, and restore them in one click.
Henkan is a high-performance plugin that automatically converts your media library images to next-generation formats like WebP and AVIF.
Speed up WordPress with our image optimization plugin! Convert images to next-gen AVIF & WebP formats to instantly improve Core Web Vitals.