Cleanor Tools

Most WordPress image optimizers make you create an account, paste an API key, or buy per-image credits. Cleanor Tools doesn’t. It shrinks the images in your Media Library and converts them to modern formats (WebP / AVIF) using the free Cleanor Labs endpoint — no signup, no key, no credits. Lighter images mean faster page loads, higher PageSpeed / Core Web Vitals scores, and less storage used.

Point-and-forget: turn it on and every new upload is optimized automatically, thumbnails included. Already have thousands of images? Run the one-click bulk optimizer.

What makes it different

• No account, no API key, no credits. The default endpoint is free and key-free — you’re optimizing within a minute of activating, with nothing to sign up for.
• AVIF, not just WebP. Convert to AVIF (the smallest mainstream format) as easily as WebP, straight from the Media Library.
• Backed by open data. Our savings figures come from published, reproducible benchmarks (open dataset with a citable DOI), not marketing claims.
• Full-library bulk mode. Optimize every existing image with a progress bar you can leave running.
• Keeps your originals (optional). Store a .bak of every source file so you can revert.
• Transparent. A “Cleanor” column in the Media Library shows exactly how much each image shrank, plus a running total on the settings screen.
• Lightweight. No giant framework, no tracking, no ads in your dashboard.

What it does

1. On upload (or on demand), the full-size image and every generated thumbnail are sent to the Cleanor endpoint.
2. Each is re-encoded to your chosen format and quality.
3. The optimized versions replace the originals in your Media Library, and WordPress serves the smaller files everywhere they are used.
4. Images that would not get smaller are left untouched.

Formats

• WebP: best browser support; a safe default for almost every site.
• AVIF: smallest files; supported by all current major browsers.
• Recompress (keep format): re-encode JPEGs smaller without changing the format or URL.

Privacy

Images are transmitted to the optimization endpoint you configure (by default https://mcp.cleanor.app) purely to be re-encoded, and only the optimized bytes are returned. Cleanor does not require an account and does not retain your images. You can point the plugin at your own self-hosted endpoint if you prefer. See our privacy policy at https://cleanor.app/privacy.

This plugin is a service integration: it relies on the external Cleanor API to perform optimization. Nothing else is sent.