Local WebP optimizer for WordPress. Free converts images to WebP; Pro adds AVIF and site-wide image tools.
Alternatives to ImOptimizer – Optimize Images
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.
Boost site speed by automatically converting uploads to WebP. Features smart memory protection, detailed logging, and zero API dependencies.
Optimizes images on upload. Define max. size and select the types of images to convert to webp and what quality the optimized image should have.
Compress and optimize images, enable lazy load, serve WebP & AVIF, and speed up your site with a global image CDN.
The Ultimate Image Optimization Suite for WordPress. WebP & AVIF conversion, Smart Format Selection, Watermarking, and Lazy Load. Zero server load.
Compress images & PDFs automatically, convert to WebP & AVIF, and generate SEO-friendly filenames with AI. Bulk optimization, smart crop & resize.
Automatically compress and convert your images to modern formats (WebP, AVIF). Get a perfectly optimized image every time and speed up your website.
PixelCraft with WebPv2.1.4
Automatically convert JPG and PNG images to WebP, reduce file sizes and speed up your WordPress website.
Automatically optimize images with bulk compression, lazy loading, WebP/AVIF conversion & CloudFront image CDN. Boost Core Web Vitals & conversions.