This plugin changes where a site stores its automatically generated image thumbnails, placing them in a designated folder separate from original uploads. It is designed for site administrators who want a cleaner file structure, particularly to make backing up original media files more straightforward.

• Separate Thumbnail Storage: Automatically directs new thumbnail files to a /thumbnails subdirectory within the main uploads folder, keeping original images isolated.
• On-Demand Generation: Thumbnails are created only when they are first requested by a page or post, which can help manage server storage over time.
• Multisite Compatibility: For multisite installations, it correctly creates separate thumbnail folders within each site's uploads directory, maintaining organization across the network.
• Management Tools: Includes a dedicated tool and WP-CLI command for safely deleting existing thumbnails, useful for migrating an entire library to the new structure.
• Filter Hooks: Developers can use provided filters to modify the default thumbnail storage path, allowing for custom directory structures if needed.