Convert all existing JPG/PNG images in your Media Library to WebP with a single click, in place, with no duplicates.
Alternatives to Stintlief WebP Converter
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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, convert them to WebP, find unused images, and even optimise pictures uploaded through form plugins like Gravity Forms — all locally, …
Local WebP optimizer for WordPress. Free converts images to WebP; Pro adds AVIF and site-wide image tools.
Convert WordPress images to WebP automatically. Optimize page speed, boost SEO, and reduce bandwidth with unlimited conversions and smart backups.
Automatically convert uploaded JPEG and PNG images to WebP and serve them on the front end with zero theme integration.
Optimize images locally, serve WebP & AVIF, and keep CDN caches current with Cloudflare or webhook purging—without cloud quotas.
Converts JPEG/PNG to AVIF and WebP; rewrites content to <picture> with JPG/PNG fallback. Completely free, no paid version.
Free WebP & AVIF image optimizer for your Media Library. No account, no API key, no per-image credits. Faster Core Web Vitals.
Image optimizer and WebP & AVIF converter: compress and resize images free on your own server, no account needed. Optional cloud adds video.
Convert JPG/PNG uploads to WebP on your own server. No cloud API, no quotas. Optional HTML rewrite only when .webp exists.