Local WebP optimizer for WordPress. Free converts images to WebP; Pro adds AVIF and site-wide image tools.
Alternatives to MRI SiteOptimizer
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.
Compress images in your browser before uploading. Your images never go through third-party servers.
Optimize your images with compression, CDN delivery, and responsive images through the ImageBoss service.
Vacuum Image Optimizerv1.2.1
Local WebP and AVIF image optimization with safe bulk processing, backup and restore tools, diagnostics, CSV reports, and no external API.
Converts your images to WebP a little at a time, so even a cheap shared host can optimize a large media library without timeouts.
Automatic image compression, WebP, lazy loading, script optimization, and page caching. Make your WordPress site faster in one click.
Automatically compress JPEG, PNG, and WebP images on upload. Reduce file sizes up to 80% without visible quality loss.
Unlimited local image compression. Bulk optimize, auto-compress on upload, backup and restore. No external API, no limits.
Short Description: Load YouTube videos faster by replacing iframes with a preview image; the video plays only when clicked play.
Optimize and analyze your WordPress images with local compression, WebP conversion, image health reports, optimization statistics, and no external API …