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Zammad vs Zoho Desk: catalog facts
Zammad	Zoho Desk
Free The self-hosted community edition is free; hosted plans are sold separately.	Freemium Free signup is available, with paid plans offered through a free trial.
Linux, Web, Self-hosted	Web
Packages for Debian, Ubuntu and CentOS plus Docker Actively released	Multichannel inbox for support conversations Built-in help center with knowledge base and community
Server runs on Linux only Heavier to set up than simple PHP help desks	Hosted only, no self-hosted edition AI features lean toward customer service rather than internal IT
Self-hosted	Hosted service
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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