WebP Image Converter & Replacer – Convert to WebP, No Duplicates
| 开发者 | coreessentials |
|---|---|
| 更新时间 | 2026年9月24日 19:15 |
| PHP版本: | 7.4 及以上 |
| WordPress版本: | 7.1.2 |
| 版权: | GPLv2 or later |
| 版权网址: | 版权信息 |
详情介绍:
WebP Image Converter & Replacer converts your images (JPEG, PNG, static GIF) to WebP, replaces originals only when smaller, and updates database references so your site transparently serves
.webp. No duplicate files. No front-end bloat. Just faster pages and less disk usage.
Why this plugin
- No Duplicate Images: Converts and replaces originals when WebP is smaller, keeping
/uploadslean. - Real Performance Gains: WebP typically reduces size ~25–35% at similar quality, aiding Core Web Vitals.
- Safety First: Never deletes the original unless conversion succeeds and the WebP is smaller.
- Full DB Integration: All generated sizes are converted; URLs in content/meta are updated to
.webp. - On-Server Only: Uses PHP GD or Imagick. No external API, keys, or privacy concerns.
- Lightweight: Runs only during conversion—nothing extra on the front end. Free features
- Convert individual images from Media → Library (list view).
- Optimization Overview with counts: convertible, converted, remaining, skipped, failed, total space saved.
- Smart memory handling to avoid PHP exhaustion on large images. Premium features
- Auto-convert on upload: New images become WebP automatically.
- Bulk convert selected: Multi-select in Media Library (list view).
- Bulk convert all: Library-wide conversion with progress + pause/resume.
Whether you’re tight on storage or chasing better performance, this is a safe, effective way to modernize images.
/wp-content/uploads/ and database before converting. Test on staging if possible.
安装:
- Back up
/wp-content/uploads/and your database. - Install via Plugins → Add New (search “WebP Image Converter & Replacer”) or upload the ZIP.
- Activate.
- Ensure Imagick or GD with WebP is available (the plugin will warn if not).
- Go to Settings → Media → WebP Image Converter & Replacer for overview & tools.
- (Recommended) Install Phoenix Media Rename for robust database URL updates (see below).
屏幕截图:
常见问题:
Will this plugin delete my images?
Only if the WebP conversion succeeds and the WebP is smaller. Otherwise, the original stays. Always keep backups.
Why are the “space saved” numbers sometimes larger than the single file size?
WordPress creates multiple thumbnail sizes. Savings are calculated across the original + all thumbs vs. their WebP equivalents. Thumbnails can outweigh the original file, so total savings can exceed the original’s size.
What if I uninstall the plugin?
Your site will continue serving the existing WebP files. Settings are removed; deleted originals are not restored.
Does this compress or just change format?
It converts format using standard WebP quality defaults (approx. 80–85). No downscaling or custom per-image quality controls in this version.
Can I change WebP quality?
Not via UI. Advanced users can use the webpicr_webp_quality filter (0–100). Default is 80.
Example (custom plugin or theme functions.php):
add_filter( 'webpicr_webp_quality', function( $quality, $source_path, $dest_path ) {
return 72; // lower = smaller files; higher = better quality
}, 10, 3 );
AVIF or other formats?
Currently WebP only. AVIF may be added when browser and server support are broadly stable.
Animated GIFs?
We auto-detect animated gifs and mark them as skipped, we do not convert them.
Multisite support?
Yes. Network-activate, then run conversions per site. Always back up each site first.
I hit a timeout/error.
Use bulk pause/resume, try smaller batches, or raise PHP memory/time limits. The plugin includes memory guards, but extreme libraries may need server tweaks.
Does it support all browsers?
Modern browsers do. Legacy/very old browsers may not; if those matter, use a different approach.
Does conversion update links in posts?
Phoenix Media Rename does. This plugin does not rewrite post content. Phoenix covers the builders and themes. After Phoenix finishes, the optimized WebP replaces the converted file and thumbnails are not generated a second time.
更新日志:
1.1.8
- Bug fix: Conversion generates only the thumbnail sizes the site still has registered. Older sizes listed in the attachment metadata are deleted after Phoenix finishes. Empty name-scaled-WxH leftovers are deleted. Files that were never in the metadata are left on disk
- The saved-bytes total includes those deleted thumbnails minus the new WebP thumbnails. Files that were never in the metadata are not counted
- Bulk convert leaves out wide images whose original-file link is missing, so those JPEGs are not kept beside a new WebP set
- Bug fix: Wide images whose metadata no longer points at the full original still use that sibling file, so Phoenix rewrites thumbnail URLs and thumbnails are not named name-scaled-WxH
- Bug fix: Keep Phoenix Media Rename responsible for content URL updates
- Bug fix: After Phoenix renames and generates thumbnails once, swap in the optimized WebP without generating thumbnails again. The second regeneration was stacking another
-scaledfile and a second thumbnail set - Bug fix: After Phoenix finishes, delete thumbnails still listed in the pre-convert metadata that Phoenix did not remove because those sizes are no longer registered
- Bug fix: Images over the 2560px big-image threshold no longer produce a
-scaled-scaledfile or leave the old-scaledJPEG behind. Phoenix was copying the full original because the library file was already named-scaled, and thumbnail generation never finished - Bug fix: Big-image thumbnail URLs in post content are rewritten. Phoenix only searches posts for the attached filename, which is
name-scaled, so URLs such asname-640x800.jpgwere skipped
- Enhancement (Premium): Retry Failed & Skipped — re-queue images locked out of bulk after disk-full or other failures
- Bug fix: Stop showing “all eligible converted” when the queue is empty only because items are failed/skipped
- Compatibility: Tested with WordPress 7.1
- Bug fix: Set image/webp MIME type after Phoenix-assisted conversions (single, bulk, and auto-convert)
- Bug fix: Restore missing total-savings helper used by timeout status polling
- Bug fix: Align auto-convert success/failure meta keys with the current
_webpicr_*schema - Bug fix: Store size meta on Phoenix auto-convert so Recalculate Savings stays accurate
- Bug fix: Use tracked conversion counters instead of stale legacy SQL counts
- Bug fix: Auto-convert in the block editor — defer until WP 7.1 media finalize so image blocks/srcset use WebP URLs (not mixed PNG sizes)
- Security: Require upload/edit caps on conversion status AJAX checks
- Enhancement: Documented
webpicr_webp_qualityfilter for advanced quality control
- Bug fix: "Fix WebP MIME Types" Utility
- Enhancement: MIME type updated after metadata generation
- Enhancement: Animated GIFs - Better protected & auto-skipped
- Enhancement: Oversized images - Detected & auto-skipped
- Enhancement: Server limits - Respects ImageMagick & WebP constraints
- Bug fix: Large images: 5-min timeout + execution limit
- Bug fix: Timeout handling - Client-side polling for accuracy
- Bug fix: improved handling of premium activation edge cases.
- Major: Auto-Convert on Upload (Premium)
- Major: Optimization Overview (real-time stats)
- Enhancement: Phoenix Media Rename integration + auto-install/activation help
- Enhancement: Memory management to prevent PHP exhaustion on large images
- Enhancement: Stats cleanup on media deletion
- Enhancement: Bulk conversion with pause/resume and better progress
- Enhancement: Bulk select conversion via Media Library
- Enhancement: Caching for faster operations
- Enhancement: Better error handling and debug logging
- Enhancement: WPCS compliance and clearer UI messaging
- Bug fix: improved handling of animated GIFs in stats and conversion logic
- Minor fixes and performance improvements
- Enhanced compatibility testing
- Initial release: manual bulk conversion, automatic replacement when WebP is smaller, individual conversion links, JPEG/PNG/static GIF support, GD/Imagick required.