by
Ajay
5 (2 reviews)
WebberZone Image Optimizer – WebP & AVIF Converter, Compress Images
Free WebP and AVIF converter. Compress and optimize images on your own server and serve the best format. No API key, no account, no limits.
WebberZone Image Optimizer ranks #30,698 among WordPress.org plugins with 20+ active installations, is #1,582 of 5,058 in the Security category, a 5/5 rating from 2 reviews, and was last updated Oct 11, 2026. Data from WordPress.org, refreshed twice daily — see methodology.
Compatible with WP 7.1.4
v1.2.1
Current Version v1.2.1
Updated 3 weeks ago
Last Update on 11 Oct, 2026
Refreshed 21 hours ago
Last Refreshed on
#1,582 of 5,058 in Security
Top 50% by installs
Actively maintained
Rank
#30,698
—
No change
Active Installs
20+
+400%
KW Avg Position
112.3
2 worse
Downloads
628
+3 today
Support Resolved
100%
—
No change
Rating
100%
Review 5 out of 5
5
(2 reviews)
Next Milestone 30
20+
30+
7,953
Ranks to Climb
-
Growth Needed
8,000,000
Active Installs
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Rank Changes
Current
#30,698
Change
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5.0
2 reviews
Overall
100%
5
2
(100%)
4
0
(0%)
3
0
(0%)
2
0
(0%)
1
0
(0%)
Support Threads Overview
Resolved
Unresolved
1
Total Threads
1
Resolved
0
Unresolved
100%
Resolution Rate
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- Version
- 1.2.1
- Last Updated
- Oct 11, 2026
- Requires WP
- 6.6+
- Tested Up To
- 7.1.4
- PHP Version
- 7.4 or higher
- Author
- Ajay
Support & Rating
- Rating
- ★ ★ ★ ★ ★ 5
- Reviews
- 2
- Support Threads
- 1
- Resolved
- 100%
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Frequently Asked Questions
Common questions about WebberZone Image Optimizer – WebP & AVIF Converter, Compress Images
By default, originals are unchanged and modern copies are separate files. Enable Compress original images to recompress served JPEG/PNG files with mandatory backups. Restore originals reverses compression and optional resizing. The unscaled upload retained by WordPress is left untouched.
Your site immediately goes back to serving the original images. The generated files stay on disk, so reactivating restores the optimization instantly without converting anything again.
No. The <picture> rewrite needs nothing beyond activating the plugin. Server rules are only needed for images referenced from CSS, and they are optional.
No. Conversion and JPEG compression run on your own server with Imagick or GD, the image libraries WordPress already uses; PNG compression also needs oxipng or pngquant on the server. There is no sign-up, no monthly quota and no limit on how many images you convert, and it works the same on staging and local sites.
Yes. There is no paid version; WebP, AVIF, bulk conversion, compression and WP-CLI are all included. AVIF only needs a server that can encode it, and the settings screen tells you whether yours can.
Smaller images mean fewer bytes to download, which is what PageSpeed Insights measures in its image delivery audit and what most often slows Largest Contentful Paint. The plugin does not lazy load images or change their dimensions, so keep whatever handles those today.
No. WebP and AVIF files left next to your originals by plugins such as ShortPixel, Imagify or EWWW Image Optimizer are served as they are. The plugin detects which naming those files use and offers to match it, and the bulk run only creates the formats that are missing. Do not use the old plugin's restore tool before switching, as that deletes its optimized copies. See Migrating from another image optimizer.
AVIF produces noticeably smaller files than WebP and is understood by every current browser, but it takes longer to encode and a small number of older browsers do not support it. Generating both is the safest choice: each visitor gets the smallest file their browser can read, and anyone else gets the original. Start with WebP if your library is very large. My server cannot encode WebP or AVIF The settings screen marks any format your server cannot produce. Ask your host to enable the Imagick extension, which is the better backend, or GD compiled with WebP support. One of my images is still being served as a JPEG or PNG There are three common reasons, and the Media library column tells you which one applies. The image is not hosted on your site. Only files inside your own uploads directory can be optimized. Posts imported from another site often keep image URLs pointing back at the original domain, and those are left alone. One size in the set could not be made smaller. A lossy optimized copy that misses the minimum saving is retried once at a lower quality and discarded if it still misses. Lossless copies are simply discarded when they miss. Missing intermediate copies are left out of the optimized srcset, so the browser can still use the copies that exist. If the smallest, widest or highest-density copy is missing, that optimized format is withheld to avoid over-downloading or serving an undersized image where the original set offered a better choice. Your server cannot produce that format. Check the settings screen, which marks any format your server cannot encode.
Yes. Because the format choice happens in the browser rather than on the server, every visitor receives identical HTML and the page cache stays correct. If you also add the optional server rules for CSS backgrounds, keep the Vary: Accept header they include.
