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WFDownloader App vs Grabber: catalog facts
WFDownloader App	Grabber
Free Free to download and use.	Free Free and open source under the Apache-2.0 licence.
Windows, macOS, Linux	Windows, macOS, Linux, Android, Command line
Downloads whole galleries and URL lists in batches Built-in crawler and URL pattern generator	Searches several imageboards in a single tab Powerful filename templates
Closed source Site support can break when websites change	Focused on imageboards and booru-style sites Many options can take time to configure
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: Apache-2.0
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.