WebP Image Converter & Replacer – Image Optimisation, No Duplicates, Save Disk Space

开发者	coreessentials
更新时间	2025年7月9日 17:56
PHP版本:	5.8 及以上
WordPress版本:	6.8
版权:	GPLv2 or later
版权网址:	版权信息

下载

1.0.0

详情介绍:

WebP Image Converter & Replacer is a WordPress plugin that lets you manually convert images to WebP for improved performance and storage savings. It replaces your images (JPEG, PNG, static GIF) with WebP versions only if they are smaller and deletes the original files to free up server space. This plugin does NOT auto-run on image upload, giving you complete control to optimize images on your schedule. Key Features:

No Duplicate Images: Unlike other optimizers, this plugin removes the original JPEG/PNG after converting to WebP (when WebP is smaller). Your uploads folder stays lean—no double storage.
Faster Page Load Times: WebP images are typically 25–35 % smaller than JPEG at similar quality, which helps pages load faster and boosts Core Web Vitals.
Safety Checks: Originals are only deleted if the WebP conversion succeeds and results in a smaller file. If WebP is larger (rare, usually if the original is tiny or already well-compressed), the plugin keeps the original.
Preserve Image Meta & Thumbnails: All thumbnail sizes generated by WordPress are also converted and replaced. The plugin updates database references to .webp, so posts and pages seamlessly use the new files.
No Expensive External API – 100 % On-Server: Uses PHP's GD or Imagick extensions. No API keys, no external calls—ideal for privacy and closed environments.
Lightweight and No Runtime Overhead: The plugin runs only during conversion. It adds no front-end scripts or bloat; WordPress simply serves the WebP images afterward.
Advanced-User Focus: Built for site owners who understand the trade-off of removing originals. Maintain backups and enjoy maximum efficiency (see FAQ).
Manual Bulk Conversion: One-click bulk convert your selected Media Library to WebP (or convert individual images one by one). No automatic conversion on upload—process images when you decide. (Premium feature available here)

Whether you're a photographer optimizing a heavy portfolio or a webmaster battling disk quotas, WebP Image Converter & Replacer provides a safe, effective way to modernize images and slim down your website. IMPORTANT: Because this plugin deletes original images, back up your /wp-content/uploads/ directory and database before running a bulk conversion. Testing on a staging site is also strongly recommended.

安装:

Backup Recommended: Back up your /wp-content/uploads/ directory and database.
Upload the plugin ZIP via Plugins → Add New → Upload Plugin, or install from the repo by searching "WebP Image Converter & Replacer".
Activate through Plugins.
Ensure Imagick or GD with WebP support is enabled (the plugin will notify you if not).
Go to Media → Bulk WebP Conversion to begin (individual links also appear in Media Library list view).

屏幕截图:

升级注意事项:

1.0.0 First release. Back up your images before bulk converting. Originals will be permanently replaced when WebP versions are smaller.

常见问题:

Will this plugin delete my images?

Only after successfully converting to WebP and verifying the WebP is smaller. Otherwise, originals remain. Always keep backups.

Why are the "file-size saved" numbers larger than the original file size?

WordPress stores more than just the single file you see in the Media Library.\ For every image it also creates several thumbnail sizes, so the true footprint is: (original file + all JPEG/PNG/GIF thumbnails) When WebP Image Converter & Replacer shows savings it compares the combined size of those originals with the combined size after conversion: (original file + JPEG/PNG/GIF thumbs) − (WebP file + WebP thumbs) = space saved Because thumbnails often add up to more kilobytes than the original, the reported savings can exceed the size of the single file you uploaded—this is expected and accurate.

What if I uninstall the plugin?

Your site continues serving the WebP images. Uninstalling removes plugin settings but does not restore deleted images.

Are WebP images supported by all browsers?

As of 2025, nearly all modern browsers (Chrome, Firefox, Edge, Safari 14+, Opera, most mobile) support WebP. If legacy browsers matter to you, consider keeping originals or using a JavaScript fallback.

Does the plugin compress images or just change format?

It converts format. WebP's algorithm usually shrinks file size significantly without extra quality loss. It does not downscale or apply custom compression levels in this version.

What about AVIF or other formats?

Currently WebP only. AVIF may be added once browser support and server tooling are more mature.

Can I control the WebP quality level?

Not via UI in version 1.0. Default quality (~80–85) balances size and clarity. Advanced users can adjust via a filter hook or Imagick defaults.

Does it work on multisite?

Partially. Activate network-wide, then run bulk conversion per site. Test carefully and back up each site first.

I encountered an error or timeout. What do I do?

Restart conversion; processed images are skipped. For persistent issues, convert in smaller batches, raise PHP memory/time limits, or consult your error logs.

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