ADee – WebP & AVIF Converter

ADee creates smaller, next-generation copies of your images and serves them automatically to browsers that support them. Your original files are never modified or deleted.

Features

• WebP + AVIF support — converts every image size (full size and all WordPress-generated sizes).
• Bulk conversion — convert the entire media library from the dashboard with a live progress bar and log.
• Auto-convert on upload — new images are converted the moment they are uploaded.
• Smart serving, three modes — Picture tag (default, works everywhere, cache-safe), Server rewrite (fastest, auto .htaccess on Apache/LiteSpeed) or legacy URL swap. Browsers that support AVIF get AVIF, older browsers get WebP, everything else gets the original.
• Serving test — one click on the dashboard verifies that next-gen images are actually being served on your site.
• Originals stay safe — variants are created next to the original files; nothing is overwritten.
• Engine detection — uses PHP GD, Imagick or the cwebp/avifenc binaries, whichever is available. You can override the engine per format.
• Media library integration — see WebP/AVIF status in a dedicated column, convert or restore any image with one click, or use the “Convert to WebP/AVIF” bulk action.
• Quality control — separate quality sliders for WebP and AVIF.
• FlynCache Purge integration — purge your page cache right after a bulk run with one click.
• WP-CLI — wp adee status, wp adee convert all, wp adee restore all --yes and more.
• Space savings report — live stats for converted files, bandwidth saved and average reduction.

Why WebP/AVIF?

WebP images are typically 25–35% smaller than JPEG, and AVIF can be up to 50% smaller — with no visible quality loss. Faster pages, better Core Web Vitals, happier visitors.