[WordPress] 外掛分享： Image Compressor WebP by htmlrunner

內容簡介

Image Compressor WebP by htmlrunner 是一款專為 WordPress 媒體庫設計的圖片轉換外掛，能將圖片轉換為 WebP 格式，並保留原始檔案。此外掛提供非破壞性的轉換方式，確保原始圖片不會遺失，並可隨時恢復。

【主要功能】
• 完整版本歷史記錄，隨時可恢復
• 每張圖片可自訂輸出格式與品質
• 自動備份原始圖片，便於管理
• 每日定時掃描，批次優化圖片
• 上傳時自動轉換新圖片
• 100% 本地處理，無需外部伺服器

外掛標籤

開發者團隊

原文外掛簡介

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.
Who Made This
Developed and maintained by htmlrunner.com. For full documentation, updates and usage guidance, visit the official plugin page: https://htmlrunner.com/wordpress-plugins/image-compressor-webp-by-htmlrunner/