WebP Image Converter & Replacer – Image Optimisation, No Duplicates, Save Disk Space
| 开发者 | coreessentials |
|---|---|
| 更新时间 | 2025年9月12日 14:57 |
| 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 |
详情介绍:
- 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.
- 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.
- Smart 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.
- Complete Database Integration: All thumbnail sizes generated by WordPress are converted and replaced. Database references are seamlessly updated to
.webp, so posts and pages automatically use the new files. - Optimization Overview: Real-time statistics showing total convertible images, already converted, remaining to convert, skipped, failed, and total space saved.
- Memory Management: Intelligent memory handling prevents PHP exhaustion errors during conversion of large images.
- Phoenix Media Rename Integration: Seamless database URL updates using the trusted Phoenix Media Rename plugin (see FAQ for details).
- No External API – 100% On-Server: Uses PHP's GD or Imagick extensions. No expensive 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 bloat. WordPress simply serves the WebP images afterward.
- Individual Image Conversion: Convert single images via Media Library list view with "Convert to WebP" links
- Advanced Statistics: Track conversion progress, success rates, and space savings with detailed reporting
- Auto-Convert on Upload: Automatically convert eligible images to WebP when uploaded through any WordPress interface (posts, pages, media library). Seamless integration with editors - they receive the optimized WebP version instantly. Premium only
- Bulk Convert Selected: Use Media Library bulk actions to convert multiple selected images at once - perfect for targeted optimization. Premium only
- Bulk Convert All: One-click conversion of your entire Media Library with progress tracking, pause/resume functionality, and intelligent processing. Premium only
/wp-content/uploads/ directory and database before running conversions. 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 Settings → Media to view your optimization overview and conversion options.
- For enhanced database integration, install Phoenix Media Rename (recommended - see FAQ).
屏幕截图:
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 do you integrate with Phoenix Media Rename instead of handling database updates yourself?
Phoenix Media Rename is a mature, specialized plugin that safely handles database URL updates across WordPress. Rather than reinventing the wheel (and risking missed URLs or database issues), we leverage Phoenix's proven expertise. This approach is more reliable than the DIY database replacement systems used by many other image optimizers.
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 happens to my statistics if I delete converted images?
The plugin automatically updates all statistics when you delete media files. If you delete a successfully converted image, the "Already converted" count decreases by 1, and any associated space savings are removed from the total.
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 a different plugin.
Does the plugin compress images or just change format?
It converts format. WebP's algorithm 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 this version. Default quality (~80–85) balances size and clarity. Advanced users can adjust via filter hooks.
Does it work on multisite?
Yes. Activate network-wide, then configure and run conversions per site. Test carefully and back up each site first.
I encountered an error or timeout. What do I do?
For bulk operations, you can pause and resume. For persistent issues, convert in smaller batches, raise PHP memory/time limits, or consult your error logs. The plugin includes intelligent memory management to prevent most timeout issues.
How do I get premium features?
Premium features (Auto-Convert on Upload and Bulk Convert All) are available at coreessentials.online.
更新日志:
- Bug Fix: Better handling of premium version activation.
- Major Feature: Added Auto-Convert on Upload (Premium) - automatically convert images when uploaded through any WordPress interface
- Major Feature: Added comprehensive Optimization Overview with real-time statistics
- Enhancement: Phoenix Media Rename integration with automatic installation/activation assistance
- Enhancement: Intelligent memory management to prevent PHP exhaustion on large images
- Enhancement: Enhanced statistics tracking with proper cleanup on media deletion
- Enhancement: Improved bulk conversion with pause/resume functionality and better progress tracking
- Enhancement: Added support for bulk select conversion via Media Library bulk actions
- Enhancement: Comprehensive caching system for improved performance
- Enhancement: Better error handling and debug logging
- Enhancement: Full WordPress Coding Standards compliance
- Enhancement: Improved user interface with better messaging and status indicators
- Bug Fix: Better handling of animated GIFs in statistics and conversion logic
- Minor bug fixes and performance improvements
- Enhanced compatibility testing
- Initial release of WebP Image Converter & Replacer.
- Manual bulk conversion for Media Library images.
- Automatic replacement with WebP when smaller; deletion of originals.
- Individual image conversion option in Media Library.
- Supports JPEG, PNG, and static GIF conversion.
- Requires Imagick or GD with WebP support.