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SEV WebP Migrator for W3TC — WordPress Image Optimization Plugin

by Heinrich Franz · WordPress.org page · Website

v2.3.0 Tested up to WP 7.1 PHP 8.0+

SEV WebP Migrator for W3TC has 10+ active installs on WordPress.org and 374 downloads all time. We have tracked it since September 4, 2026; download trends appear after 30 days of data. The last update was on August 19, 2026, tested up to WordPress 7.1.

SEV WebP Migrator for W3TC at a glance

Active installs
10+
Total downloads
374
Downloads, last 30 days
–
available after 30 days of tracking
30-day growth
–
tracking since September 4, 2026

Is SEV WebP Migrator for W3TC well maintained?

Support threads resolved
No open threads
nothing waiting on the WordPress.org forum
WordPress compatibility
Current
tested up to WordPress 7.1, the current release is 7.1

Features

The feature list from the plugin's own readme on WordPress.org, trimmed to the essentials.

  • Listens for W3TC ImageService conversions and reacts automatically
  • Regenerates any intermediate size W3TC itself failed to convert (this can happen silently, e.g. for Site Icon sizes that are only registered in certain admin…
  • Replaces every reference to the converted image (full size and all intermediate sizes) — in post_content across all posts, widget instances, and theme mod…
  • Updates the attachment’s own file reference, metadata, and mime type to match
  • Optional: deletes the original source files after a successful replacement
  • A source file is only ever deleted once its .webp counterpart has been confirmed to exist on disk
  • Manual “process now” tool in Settings → WebP Migrator for W3TC for images that were converted before this plugin was active
  • Diagnostic logging (behind WP_DEBUG_LOG) explains exactly why an image was skipped, to help troubleshoot a batch that makes no progress
  • Also corrects an image reference at the moment a post is saved, for the rare case where the image was inserted while still being converted in the background
  • Deletion of a freshly-uploaded image’s original files is deferred for a short grace period after upload, so it isn’t pulled out from under an editor session…

Details

Replaces image URLs with their WebP versions once W3 Total Cache ImageService converts them, with optional deletion of the originals.

The full description, screenshots and every review live on the WordPress.org page.

Rankings SEV WebP Migrator for W3TC competes in

Tags

  • images
  • optimization
  • performance
  • W3 Total Cache
  • webp

More from Heinrich Franz

Version
2.3.0
Last updated
Aug 19, 2026
First published
Jul 24, 2026
Requires WordPress
6.0
Tested up to
7.1
Requires PHP
8.0
Requires plugins
W3 Total Cache
Pricing
Free on WordPress.org

SEV WebP Migrator for W3TC FAQ

What does SEV WebP Migrator for W3TC do?

According to its WordPress.org readme, SEV WebP Migrator for W3TC offers Listens for W3TC ImageService conversions and reacts automatically, Regenerates any intermediate size W3TC itself failed to convert (this can happen silently, e.g. for Site Icon sizes that are only registered in certain admin, Replaces every reference to the converted image (full size and all intermediate sizes) — in post_content across all posts, widget instances, and theme mod, Updates the attachment’s own file reference, metadata, and mime type to match and Optional: deletes the original source files after a successful replacement.

How many active installs does SEV WebP Migrator for W3TC have?

WordPress.org reports 10+ active installs for SEV WebP Migrator for W3TC as of September 7, 2026.

Is SEV WebP Migrator for W3TC still maintained?

Yes. The last release was on August 19, 2026 and it is tested up to WordPress 7.1.

Is SEV WebP Migrator for W3TC free?

SEV WebP Migrator for W3TC is free to install from WordPress.org. Many plugins also sell a paid version or add-ons.