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 Flex Image Optimizer version 1.0.1 as active, updated 1mo ago and tested up to WordPress 7.1.
Overview
About this plugin
am/). It keeps image work on your WordPress server. There is no compression API, no CDN account, and no call home.
Bulk regenerate all thumbnail sizes, or only missing sizes
Generate WebP (and optional AVIF) copies next to JPEG/PNG files
Serve modern formats with a picture tag so JPEG/PNG remains the fallback
Allow SVG uploads with sanitization (scripts and unsafe markup removed)
Resize oversized originals, set JPEG/WebP quality, and strip GPS/EXIF
Media library column, row actions, bulk actions (up to 20), and WP-CLI
Admin CSS and JavaScript ship with the plugin. No remote stylesheets, no telemetry.
Privacy
Flex Image Optimizer does not send images or metadata to FLEX or any third-party service. Processing uses the WordPress image editor (Imagick or GD) on this site. Optional EXIF stripping is done on the server.
SVG sanitization runs on upload before the file is stored.
Limitations
WebP and AVIF require PHP/GD or Imagick built with those formats.
Animated GIF is not converted.
Picture-tag rewriting wraps img tags. CSS that requires img to be a direct child of another element may need a small adjustment.
SVG is treated like HTML: only trust roles you allow to upload it.
This is not a CDN, lazy-load extra, or offsite backup plugin.
WordPress.org metadata
Plugin tags
Topics listed for this plugin in the WordPress.org directory.
compression
images
svg
thumbnails
webp
Compatibility & maintenance
Compatibility & maintenance
Tested with WP 7.1
Marked as tested with the current WordPress 7.1 release.
Current WordPress releaseWordPress 7.1
WordPress.org Tested up to7.1
Minimum requirementsWordPress 6.2 · PHP 7.4
Update activity30 Sept 20261mo 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.
