About this plugin
OptiFusion optimizes your entire WordPress Media Library:
- Bulk convert PNG/JPG images to WebP
- 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
- Force Re-optimize All Images — re-process your entire library after
changing format, quality, or other settings, not just new uploads
- Strip EXIF/metadata for extra savings
- Optional max-width resize for oversized images
- WebP fallback via tags — modern browsers get WebP,
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) or the GD
library (fallback, available on almost every server).
External services
This plugin’s optional AI Tools feature (alt-text and tag generation
for an image) connects to the Google Gemini API
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.