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HumHub vs Elgg: catalog facts
HumHub	Elgg
Freemium The open-source edition is free to self-host; hosted plans are offered by the developer.	Free Free and open source.
Web, Self-hosted	Self-hosted
Spaces with separate members, content and permissions Large module library covering wikis, events, tasks and more	Granular access control for private networks and intranets Extensive plugin and theme system
Aimed at organisations rather than public social networking Some functionality depends on picking and configuring modules	Building a polished site often needs PHP development Requires a PHP and MySQL server
Self-hosted, Hosted service	Self-hosted
Open source	Open source
License: AGPL-3.0	License: GPL-2.0
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.