Local WebP optimizer for WordPress. Free converts images to WebP; Pro adds AVIF and site-wide image tools.
Alternatives to Image Ninja – Convert Images to WebP & AVIF on Upload
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.
Browser-based image compression & WebP—no API keys or quotas. Works on any hosting.
AVAR Media Optimizerv1.23.0
Find unused images and duplicate files, clean your Media Library, compress images and create WebP/AVIF — with a restorable trash.
Image optimization in 1‑click: compress, resize & convert to WebP/AVIF – free up to 20MB/month. Enjoy the easiest WordPress image optimizer to set up.
Image optimization that compresses your images and creates WebP and AVIF versions, through our service or on your own server. Originals are kept.
Optimize every image in your Media Library in one click. Originals are always kept safe, and WebP/AVIF versions are served automatically.
Convert Media Library images to WebP or AVIF locally in your browser.
Convert images to WebP and replace originals—no duplicates. Save storage and speed up your site. Auto-convert on upload & bulk tools (premium).
Automatically compress and convert your images to modern formats (WebP, AVIF). Get a perfectly optimized image every time and speed up your website.
QuickWebP converts JPG and PNG to WebP, compresses images locally, improves image SEO, and adds AVIF with QuickWebP Pro.