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Free Plugin by devowl.io GmbH v2.7.0

Real Thumbnail Generator: Efficient regeneration of thumbnai...

Real Thumbnail Generator is a WordPress plugin for regenerating thumbnails. It is beginner-friendly, SEO-optimised and GDPR-compliant.

Real Thumbnail Generator: Efficient regeneration of thumbnai...

The facts

Rating
3.7★ from 15
Active installs
1k+
Price
Free
Last updated
18 Aug 2026
Added
Aug 2019
Requires WP
6.1
Tested up to
WP 7.1
Requires PHP
7.4.0
Downloads
171,316

Our analysis

AI-assisted

Real Thumbnail Generator is a WordPress plugin designed to regenerate image thumbnails in various sizes for your website. It allows you to (re)generate single or multiple image sizes, making it easier to manage media when changing themes without losing the integrity of your images.

This plugin is suitable for users who frequently update their site's design or media library, as it ensures that thumbnails are optimised and consistent across different themes. It supports WordPress Multisite and can handle PDF files as well.

Best for: This plugin is best for WordPress users who need to manage and optimise media files, especially during theme changes.

What it does well

  • Regenerates unlimited thumbnails in the free version
  • Compatible with all major themes and many plugins
  • Supports mass regeneration of thumbnails
  • Reliable and fast regeneration process

Where it falls short

  • Some features are only available in the PRO version
  • Limited information on the specific capabilities of the free version

Verdict

Real Thumbnail Generator provides a straightforward solution for regenerating thumbnails, making it useful for users who frequently update their website's design. However, some advanced features are restricted to the PRO version.

From the developer

devowl.io GmbH's own description of Real Thumbnail Generator: Efficient regeneration of thumbnai..., lightly tidied.

(Re)generate single or multiple image sizes for your WordPress website and create a SEO-optimised custom structure for uploading thumbnails.

Regenerate UNLIMITED thumbnails with the free version!

In the course of optimising a WordPress website, it can often be necessary to change the theme – especially if the website is still being created. Unfortunately, a theme change can alter the image sizes and lead to despair. This is where Real Thumbnail Generator comes into play: The WordPress plugin is responsible for regenerating the image sizes. With a few clicks, the problem is solved! This way, themes can be changed as often as desired without negatively affecting the media management.

Free Sandbox

You want to try WordPress Real Thumbnail Generator before
installing? Take a free sandbox and play around!

Create sandbox

Features

Some of the features listed below are only available in the PRO version of Real Thumbnail Generator. They are marked with an asterisk.

  • Mass regeneration of thumbnails in the media library
  • Regenerating individual images in the media library
  • Works great with PDF files (note requirements)
  • Skip already existing thumbnails *
  • Detection and deletion of unused image sizes *

  • Reliable and fast regeneration of thumbnails (without aborts as known from other plugins)

  • Compatible with all major themes and many plugins
  • Custom upload structure for thumbnail paths and file names *
  • Supports WordPress Multisite

  • One-time payment with lifetime updates

  • Fast support from Germany
  • DSGVO/GPDR: The plugin does not collect any personal data without your consent!

Compatibility

Real Thumbnail Generator is compatible with all common themes and plugins.

Read the full description on the official page →

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