Free bulk image optimizer: compress and convert the images in your media library to AVIF & WebP. Reversible, no subscription.
Alternatives to Simple Image Converter
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
Convert media library images to WebP, JPG or PNG with per-image quality, version history, automatic backups and daily optimization.
Local WebP optimizer for WordPress. Free converts images to WebP; Pro adds AVIF and site-wide image tools.
Automatically compress and optimize your WordPress images using smart API-based compression. Reduce image size by up to 70% without visible quality lo …
Selective maintenance and service-status control for WordPress. Keep unaffected parts online with up to three independent Service Zones.
Free browser-based WordPress plugin to compress images and convert to WebP. No API key, zero server load, unlimited bulk image optimization.
Automatically converts JPG and PNG images to WebP format, optimizes size to 100KB-115KB range, updates database URLs, and generates SEO alt text.
Convert Media Library images to WebP or AVIF locally in your browser.
Convert JPG/PNG uploads to WebP on your own server. No cloud API, no quotas. Optional HTML rewrite only when .webp exists.
Convert images to WebP, compress and resize them for WooCommerce and WordPress, right in the editor. Faster PageSpeed, better image SEO.