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Regenerate Thumbnails

Regenerate thumbnail sizes after changing a theme or image dimensions, and optionally remove unused sizes.

Documentation reviewed:

Read the French edition

Visit the official Regenerate Thumbnails website ↗

Documented presentation. No practical test, speed gain, commercial result or compatibility level was measured for this listing.

A free version or tier is available; paid features and connected services may cost extra.

What it does

Regenerate thumbnail sizes after changing a theme or image dimensions, and optionally remove unused sizes.

Who it may suit

A site that has changed its theme’s image sizes and needs to recreate thumbnails from the originals.

When to consider another approach

It does not recover a lost original; the directory’s compatibility warning calls for a trial before bulk processing.

Limits and paid features

The official listing reports that it has not been tested with the latest three major WordPress releases; check compatibility before use.

Check before deciding

Back up the media, regenerate a few attachments, and check the result and disk space; WP-CLI is an alternative for an administrator with terminal access.

  • Check supported versions and maintenance on the official page.
  • Test interactions with your theme and plugins on a copy of your site.
  • For paid plans, check renewals, site limits and refund conditions.

Key facts

Type
WordPress plugin
Pricing and renewal
Check with the vendor. No unverified price is displayed.
Documentation reviewed
2026-11-13

View the documentation source ↗

The official listing link has no affiliate identifier.

Sources and references

Use these references to check the features, requirements and limitations described. Reading documentation is not a practical test.

View 1 references

English translation of the reviewed French edition. Code examples retain their original identifiers, comments and output strings for reproducibility. Linked exercise files and original screenshots may contain French. No new practical tests or price checks are implied by translation.

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