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 Image Compressor WebP by htmlrunner version 1.1 as active, updated 3mo ago and tested up to WordPress 6.9.
Overview
About this plugin
Image Compressor WebP by htmlrunner converts images in your media library to WebP (or JPG/PNG) from a clean, minimal dashboard. Every conversion is fully non-destructive: the original is never lost.
Non-destructive by design
Before every conversion, the current file is snapshotted into a hidden, web-inaccessible backup folder ( wp-content/uploads/wp-webp-backup/ ), protected with.htaccess rules.
The attachment then switches to the converted file and old image URLs inside your posts and pages are rewritten automatically — the original is unlinked from everywhere it was used, but never permanently deleted.
Restore any previous version at any time — real undo and redo for every single image.
Key features
Full version history — every conversion creates a version record (original, format, quality, date, size, space saved). Open History on any image and restore any version with one click. Undo/redo buttons included.
Per-image control — each image can be converted with its own output format (WebP, JPG or PNG) and its own quality level, overriding the global defaults.
Automatic backups — originals are snapshotted automatically before conversion. A Backups page shows every snapshot with size and age, plus per-image deletion, “back up all originals” and an optional retention period that auto-purges old snapshots.
Daily scheduled scan — enable the schedule, pick a time (default 03:00) and the plugin scans the library and optimizes pending images in batches every day via WP-Cron. Large libraries are processed in background follow-up batches, with a scan log.
Auto-convert on upload — new JPEG/PNG uploads are converted automatically with your defaults.
Savings dashboard — converted/pending counts, total space saved, a 14-day savings chart and a per-format breakdown (WebP/JPG/PNG).
Smart library view — search by filename, filter by status (pending/converted) and format, paginated table with bulk conversion and “Convert All Pending”.
Imagick or GD — choose the engine; Imagick is used automatically when available for smaller output.
100% on-server processing — no image ever leaves your hosting environment, no API keys, no accounts, no subscriptions.
Your Images Never Leave Your Server
All processing runs locally with PHP GD or Imagick — the tools already installed on virtually every hosting plan. No external calls, no data transfer, fully offline-capable.
Topics listed for this plugin in the WordPress.org directory.
image compression
image converter
image optimizer
media to 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 5.0 · PHP 7.2
Update activity2 Aug 20263mo 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.
