Active installationsNewAdoption metric — not a quality score
WordPress.org ratingNo WordPress.org ratings yet
Official packageDirect from WordPress.org
Repository metrics are context, not quality scores. Active installations measure adoption and can strongly reflect a plugin’s age and historical popularity. Ratings, recent updates and “Tested up to” metadata also do not guarantee modern code, error-free operation, security, feature completeness or suitability for a particular site. Why active installs don’t tell the whole story →
WP PlugIndex currently records ImOptimizer – Optimize Images version 1.0 as active, updated 7mo ago and tested up to WordPress 6.9.
Overview
About this plugin
ImOptimizer – Optimize Images is a safe, lightweight way to serve next-gen images on WordPress by converting uploads to WebP.
Most optimization plugins either rely on external APIs or risk server crashes by processing images without checking memory limits. ImOptimizer runs fully on your server using the native PHP GD library and includes a Smart Memory Guard that estimates RAM usage before converting—helping prevent memory exhaustion.
🚀 Why ImOptimizer?
Boost Core Web Vitals: WebP images reduce page weight and speed up loading.
Zero API Fees: No subscriptions, no credits, no data sharing. Runs locally.
Server Safety First: Skips risky conversions on low memory and detects conflicts (Smush/EWWW/ShortPixel, etc.).
Set & Forget: Auto-converts JPG/JPEG/PNG at upload time.
⚡ Feature Highlights
Smart Conversion: Converts the main image AND generated thumbnails (Media Library, WooCommerce, etc.).
Self-Cleaning Logs: Optional logging with retention cleanup (Cron).
MIME Sync: Updates WordPress metadata so.webp is recognized correctly.
Privacy Focused: Your images never leave your server.
WordPress.org metadata
Plugin tags
Topics listed for this plugin in the WordPress.org directory.
compression
images
imoptimizer
optimization
webp
Compatibility & maintenance
Compatibility & maintenance
Tested up to WordPress 6.9
Not yet marked as tested with WordPress 7.1. WordPress.org currently lists Tested up to 6.9.
Current WordPress releaseWordPress 7.1
WordPress.org Tested up to6.9
Minimum requirementsWordPress 5.2 · PHP 7.0
Update activity1 Apr 20267mo ago
“Tested up to” is directory metadata supplied by the plugin author. WP PlugIndex does not turn an older declaration into a claim that the plugin is incompatible.
Changes recorded by WP PlugIndex
Recent tracked changes
No tracked version or compatibility changes have been recorded by WP PlugIndex yet.
Tracking & source
WP PlugIndex tracks public WordPress.org directory metadata and records selected version, compatibility and availability changes as they are detected.
