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Grabber vs WFDownloader App: catalog facts
Grabber	WFDownloader App
Free Free and open source under the Apache-2.0 licence.	Free Free to download and use.
Windows, macOS, Linux, Android, Command line	Windows, macOS, Linux
Searches several imageboards in a single tab Powerful filename templates	Downloads whole galleries and URL lists in batches Built-in crawler and URL pattern generator
Focused on imageboards and booru-style sites Many options can take time to configure	Closed source Site support can break when websites change
Downloadable app	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
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 October 1, 2026	Official website Full listing and sources Checked September 24, 2026

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