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Zendesk vs Zammad: catalog facts
Zendesk	Zammad
Paid Paid subscription service with a free trial.	Free The self-hosted community edition is free; hosted plans are sold separately.
Web	Linux, Web, Self-hosted
Tickets from many channels in one queue Covers both customer support and internal employee service	Packages for Debian, Ubuntu and CentOS plus Docker Actively released
Proprietary hosted service with data stored by Zendesk Heavy focus on AI features that may not suit every team	Server runs on Linux only Heavier to set up than simple PHP help desks
Hosted service	Self-hosted
Closed source	Open source
License not stated	License not stated
Account needed	Not stated if an account is needed
Needs internet	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.