Mass Resizer

Mass Resizer is a lightweight but powerful plugin for bulk image optimization. It resizes large images, converts them to WebP, replaces them across posts/pages, and safely manages media files without risking broken content.

Key Features

Bulk Image Resize • Automatically resizes images to a maximum width/height • Maintains aspect ratio (no cropping, unless enabled) • Skips small images to reduce unnecessary processing

Safe WebP Conversion • Converts JPEG/PNG to modern WebP format • Inherits original image metadata (alt, caption, description) • Creates proper attachment entries with parent relations • Preserves titles and SEO attributes

Safe Replace Mode • Replaces all occurrences of images in posts and pages • Updates featured images as well • Multiple registered sizes are replaced (full + intermediate sizes)

Safe Delete Mode To prevent content breakage, original images are deleted only when both conditions are met: 1. Replace Old Images = enabled 2. Crop = disabled If delete was requested in unsafe configuration, the plugin logs a warning and ignores the deletion.

Admin Statistics + Logs After each run, the plugin displays a detailed summary: • Images cropped • Images converted to WebP • Pages updated • Originals deleted • Total completed operations

All warnings (missing files, unsupported types, editor errors) are logged and shown to the administrator.

Automatic Server Capability Detection The plugin checks whether your server supports: • JPEG editing • WebP conversion

Unsupported features are automatically disabled with an explanation.

Fully Internationalized (i18n) All dynamic strings include translator comments, following WordPress.org standards.