Compress images and convert them to WebP on your own server. No external API, no credits, no monthly quota. Every original is backed up.
Alternatives to LehmannLabs WebP Optimizer
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.
Converts your images to WebP a little at a time, so even a cheap shared host can optimize a large media library without timeouts.
Local WebP optimizer for WordPress. Free converts images to WebP; Pro adds AVIF and site-wide image tools.
Byteslim Image Optimizerv1.2.2
Lightweight image compression, WebP/AVIF conversion, bulk optimization and smart image management for WordPress.
Codcy Image Optimizerv1.6.3
Bulk convert JPEG and PNG images to WebP. No external service. Runs entirely on your server with automatic backup.
Image Optimizer is an easy-to-use WordPress plugin that reduces image size through various compression and resizing techniques – all of which preserve …
Auto-convert JPG/PNG to WebP. Save up to 80% server space and boost site speed with built-in bulk optimization and real-time savings reports.
Convert JPG/PNG uploads to WebP on your own server. No cloud API, no quotas. Optional HTML rewrite only when .webp exists.
CodePros Image Optimizerv1.2.0
Automatically convert images to WebP, reduce file size, and improve page speed and Core Web Vitals — no setup required.
ODR Image Optimizerv1.0.13
Professional image optimizer: WebP conversion, LCP preloading, and critical-path cleanup for a 100/100 Lighthouse score.