Convert images to WebP, compress and resize them for WooCommerce and WordPress, right in the editor. Faster PageSpeed, better image SEO.
Alternatives to Nix Image 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.
Automatically converts JPG and PNG images to WebP format, optimizes size to 100KB-115KB range, updates database URLs, and generates SEO alt text.
Local WebP optimizer for WordPress. Free converts images to WebP; Pro adds AVIF and site-wide image tools.
Score every image for SEO, get AI alt text with your own provider key, quarantine unused media safely and serve WebP/AVIF without touching originals.
All-in-one image optimization, WebP generation, Master Backup & 1-Click Restore, Filename-to-ALT generator, and Media Inspector Editor.
Convert images to WebP & AVIF formats for faster websites. 100% Free, no limits, bulk conversion.
Compress WordPress images, convert to WebP and AVIF, reduce file sizes, improve page speed, and boost Core Web Vitals.
PixGrow Image Optimizerv1.1.0
Free browser-based WordPress plugin to compress images and convert to WebP. No API key, zero server load, unlimited bulk image optimization.
Automatically generates SEO-friendly image metadata and WebP versions for uploaded images.
Automatically convert uploaded images to WebP format using native GD library for maximum compatibility, and auto-fill image Alt text for better SEO.