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LinkAce vs Betula: catalog facts
LinkAce	Betula
Free Free and open source under the GPL-3.0 license.	Free Free and open source under the AGPL-3.0 license.
Web, Self-hosted	Web, Self-hosted
Automatic archiving via the Internet Archive Regular dead-link monitoring with notifications	One binary and one SQLite file Fediverse following, likes and reposts
Archived copies depend on the Internet Archive rather than local storage Not meant to replace everyday browser bookmarks	Single user per instance Fediverse features need a public domain and HTTPS setup
Self-hosted	Self-hosted
Open source	Open source
License: GPL-3.0	License: AGPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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