OptiFusion – Image Converter & Optimizer

OptiFusion optimizes your entire WordPress Media Library:

• Bulk convert PNG/JPG images to WebP or AVIF
• Smart lossy/near-lossless compression (adjustable quality)
• Auto-optimize every image the moment it’s uploaded
• Automatic backup of original images with one-click restore
• Strip EXIF/metadata for extra savings
• Optional max-width resize for oversized images
• WebP fallback via tags — modern browsers get WebP, old browsers (e.g. IE11) automatically get the original image
• Lazy loading — native loading="lazy" or an advanced IntersectionObserver-based JS loader with automatic fallback for very old browsers
• CDN integration — serve all images (and their srcset/thumbnails) from your own CDN by simply entering its URL
• Unused Images finder — scan your entire library for images not referenced anywhere on the site, select them, and bulk delete
• Dashboard shows total images, space saved, and average savings
• Works via WordPress’ native wp_generate_attachment_metadata hook, so it’s compatible with page builders, importers, and the REST API
• No conflicting global functions/classes — everything is prefixed OptiFusion_ / optifusion_

Works with either the Imagick PHP extension (recommended, supports AVIF) or the GD library (fallback, WebP only on most setups).

External services

This plugin’s optional AI Tools feature (alt-text and tag generation for an image) connects to the Google Gemini API (generativelanguage.googleapis.com).

• This is only used if you enter your own Google Gemini API key on the AI Tools settings page and explicitly click « Generate » on a specific image. No data is sent unless you take this action.
• When used, the selected image’s file data is sent to Google’s servers so the Gemini model can analyze it and return a suggested alt text and tags.
• This service is provided by Google LLC: Terms of Service, Privacy Policy.

The plugin’s duplicate-image finder and blur detector run entirely locally on your own server and do not send any data anywhere.