Where are the optimized copies, I do not see them in the Media Library?

That is expected in the default "Keep originals, serve modern" mode. Cleanor does not change your original file, so its size in the Media Library stays the same. Instead it writes a smaller WebP or AVIF copy right next to the original on disk (same name plus .webp or .avif, for example photo.jpg.webp) and serves that copy to visitors through a tag. Because it is a sibling file and not a separate attachment, it does not show up as its own item in the Media Library. To see every processed image with its before and after size and a direct link to the exact file being served, open Cleanor → Images. If you would rather the file on disk itself get smaller, switch to "Replace files" mode in Settings.

by Cleanor Labs 0 (0 reviews)

Cleanor: Image Compressor & Converter

Name: Cleanor: Image Compressor & Converter
Author: Cleanor Labs

Free WebP & AVIF image optimizer for your Media Library. No account, no API key, no per-image credits. Faster Core Web Vitals.

Cleanor ranks #29,221 among WordPress.org plugins with 10+ active installations, is #1,739 of 4,596 in the Security category, and was last updated Jul 11, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Tested up to WP 7.0.6 (Current: 7.1.2)

v0.6.0 Current Version v0.6.0

Updated 2 months ago Last Update on 11 Jul, 2026

Refreshed 10 hours ago Last Refreshed on

#1,739 of 4,596 in Security Top 50% by installs

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#29,221

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10+

+150%

KW Avg Position

134.5

30.5 better

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271

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Next Milestone 20

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8,000,000

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Plugin Details

Version: 0.6.0
Last Updated: Jul 11, 2026
Requires WP: 6.0+
Tested Up To: 7.0.6
PHP Version: 7.4 or higher
Author: Cleanor Labs

Support & Rating

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Reviews: 0
Support Threads: 0
Resolved: 0%

Keywords

AVIF compress images image optimization performance webp

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Frequently Asked Questions

Common questions about Cleanor: Image Compressor & Converter

No. With the default Auto engine, images are optimized right on your server and nothing is sent anywhere. If the API fallback is used it is free and key-free (rate-limited per site). An API-key field is included for future plans and self-hosting.

Not with the default Auto engine when your server can handle the format (WebP is supported almost everywhere via Imagick or GD). Images are then re-encoded locally and never leave your site. The Cleanor API is only contacted as a fallback, most often for AVIF on hosts without AVIF support. Choose "On this server only" in Settings to guarantee no external requests at all. Settings shows exactly what your server can do.

No, not in the default Keep originals, serve modern mode: your files, extensions and URLs are never changed. Cleanor stores a WebP/AVIF copy beside each image and serves it through a <picture> tag, so supporting browsers get the smaller file while everything else falls back to your untouched original. If you switch to Replace files mode, the file extension changes and WordPress is updated to serve the new file everywhere it references the attachment (old direct hot-links to the previous extension would need updating).

Keep originals, serve modern (default) is non-destructive: originals stay on disk untouched and modern copies are served via <picture>. Safest for existing sites and fully reversible, at the cost of a little extra storage for the copies. Replace files rewrites the actual file to WebP/AVIF (smallest storage, but URLs/extensions change). You can switch modes at any time in Cleanor → Settings → Delivery; already-processed images keep whatever mode they were done in until you re-optimize or restore them.

Yes, and it is on by default. Keep a .bak copy of the original file preserves each replaced file as filename.ext.bak, which is what powers the Restore actions. Turn it off if you would rather save the disk space.

Yes. Set Resize to a maximum width (for example 2560) in settings and any image wider than that is downscaled before it is stored. Set it to 0 to keep original dimensions. Generated thumbnails are never resized by this setting.

Yes, when Remove EXIF, GPS & camera metadata is enabled (default on). This makes files a little smaller and keeps location and camera data out of your public uploads.

Yes. In the Media Library list view, tick the images you want, then pick Optimize with Cleanor (or Restore original (Cleanor)) from the Bulk Actions dropdown and click Apply. You can also narrow the list first with the Cleanor status dropdown (all / optimized / not optimized / restorable).

That is expected in the default "Keep originals, serve modern" mode. Cleanor does not change your original file, so its size in the Media Library stays the same. Instead it writes a smaller WebP or AVIF copy right next to the original on disk (same name plus .webp or .avif, for example photo.jpg.webp) and serves that copy to visitors through a <picture> tag. Because it is a sibling file and not a separate attachment, it does not show up as its own item in the Media Library. To see every processed image with its before and after size and a direct link to the exact file being served, open Cleanor → Images. If you would rather the file on disk itself get smaller, switch to "Replace files" mode in Settings.

Yes. Open Cleanor → Bulk Optimize → Convert to a modern format, pick WebP or AVIF, and click Convert all images. It re-encodes every image in one pass, following your current delivery mode.