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ManageEngine ServiceDesk Plus vs Znuny: catalog facts
ManageEngine ServiceDesk Plus	Znuny
Paid Commercial software with a free trial.	Free Free open-source software; professional services are offered separately.
Web, Self-hosted	Web, Self-hosted
ITSM, asset management and CMDB in one product Available on-premises or in the cloud	Direct continuation of OTRS Community Edition Long-term support branch alongside a feature branch
Commercial product aimed at organisations Broad feature set takes time to configure	Self-hosting requires server setup and maintenance Aimed at organizations rather than individuals
Self-hosted, Hosted service	Self-hosted
Closed source	Open source
License not stated	License not stated
Account 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 September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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