Webxperthub Media Optimizer

by iftiarhossain

Description

Webxperthub Media Optimizer optimizes your WordPress media library without slowing down your site or your server. It automatically compresses new uploads and converts them to WebP, and lets you bulk-process your entire existing media library safely in the background.

Key Features

Automatic optimization on upload — no manual steps required
Converts images to WebP (or PNG, or compress-only with original format kept)
Typically reduces file size by 40-60% with no noticeable quality loss
Background queue processing — bulk-optimize thousands of images without server timeouts
Optional resizing of oversized uploads to a configurable maximum width/height
Keeps a backup of your original files by default
Fully multisite compatible
Uses your server’s native Imagick or GD library — no external API, no data ever leaves your server
Developer-friendly filter hooks for custom workflows

How It Works

When Webxperthub Media Optimizer is enabled, every new image uploaded to your Media Library is automatically queued for optimization. A background process (WP-Cron) picks up queued images in small batches, so your server is never overloaded even if hundreds of images are queued at once.

Use the Bulk Optimize screen under Webxperthub Media Optimizer in your admin menu to queue your entire existing media library and watch a live progress bar as images are processed.

For Developers

Skip optimization for specific attachments:

add_filter( 'mopw_skip_optimization', function( $skip, $attachment_id ) {
    if ( get_post_meta( $attachment_id, '_never_optimize', true ) ) {
        return true;
    }
    return $skip;
}, 10, 2 );

Override format/quality for specific attachments:

add_filter( 'mopw_before_optimize_args', function( $args, $attachment_id ) {
    if ( has_term( 'print-quality', 'category', $attachment_id ) ) {
        $args['quality'] = 95;
    }
    return $args;
}, 10, 2 );

Run custom logic after an image is optimized:

add_action( 'mopw_after_optimize', function( $attachment_id, $original_size, $new_size ) {
    error_log( "Attachment {$attachment_id} shrank from {$original_size} to {$new_size} bytes." );
}, 10, 3 );

Installation

Upload the plugin folder to /wp-content/plugins/, or install directly through the Plugins screen in your WordPress admin.
Activate the plugin.
Go to Webxperthub Media Optimizer Settings to configure quality, output format, and resizing options.
Optionally, go to Webxperthub Media Optimizer Bulk Optimize to process your existing media library.

Faq

Will this plugin send my images to an external server?

No. Webxperthub Media Optimizer uses your server’s own Imagick or GD library to process images locally. Nothing is ever uploaded to a third-party service.

What happens to my original images?

By default, Webxperthub Media Optimizer keeps a backup copy of your original file in a protected uploads/mopw-backups/ folder (not web-accessible, and not guessable from the live file’s URL) alongside the optimized version. You can disable this in Settings if you don’t need it.

Does deleting the plugin remove my backup files?

Yes. Uninstalling Webxperthub Media Optimizer removes every backup file it created, along with its settings and internal processing queue.

Will converting to WebP break links to my images elsewhere?

If you choose to convert format (WebP/PNG), the file’s extension changes — so any content that links directly to the old file’s URL (rather than through WordPress’s own image blocks/shortcodes, which are updated automatically) may break. This is why the default output mode is “Keep Original Format” (compress only, same filename). Switch to WebP/PNG conversion only if you understand this trade-off.

Will this slow down my server when bulk-optimizing thousands of images?

No. Bulk optimization uses a background queue processed in small batches (configurable under Settings Performance), so your server only ever processes a few images at a time, never all at once.

Is this compatible with Multisite?

Yes. Webxperthub Media Optimizer can be activated network-wide, and each site maintains its own independent settings and processing queue.

What image formats are supported?

JPEG and PNG sources are supported. Output can be WebP, PNG, or the original format (compression only, no format change).

Reviews

Changelog

1.1.0

Default output format changed to “Keep Original Format” (compress-only) — converting to WebP/PNG changes the file’s URL and could break existing links to it, so that behavior is now opt-in rather than default.
Original-file backups moved to a protected, non-guessable uploads/mopw-backups/ folder instead of a predictable <file>.mopw-bak name next to the live file (which was directly web-accessible).
Fixed: old-format/old-size thumbnail files were left behind (orphaned) after converting an image’s format or restoring an original — they are now cleaned up.
Fixed: uninstalling now removes backup files and internal run-state options that were previously left behind.
Fixed: a queue item could get stuck indefinitely if PHP crashed mid-optimization (e.g. out-of-memory on a very large photo); stuck items are now automatically recovered and retried.
Fixed: large images are now processed with a raised memory limit to reduce the chance of that crash happening in the first place.
Fixed: a JavaScript error could silently break the “Restore Original” link in the Media Library while a bulk run was in progress.
Performance: bulk-queuing your whole media library now uses indexed cursor-based pagination instead of OFFSET, which is significantly faster on large libraries.
Performance: image-processing engine detection (Imagick/GD) is now cached per request instead of being re-run for every image size.

1.0.1

Improved compatibility and polish for the initial public release
Refined WordPress.org plugin metadata and release documentation
Updated upgrade notice and public listing details for a cleaner submission package

1.0.0

Initial release