Compare software

Zammad vs OTOBO: catalog facts
Zammad	OTOBO
Free The self-hosted community edition is free; hosted plans are sold separately.	Free Open source with no licence fees.
Linux, Web, Self-hosted	Web, Self-hosted
Packages for Debian, Ubuntu and CentOS plus Docker Actively released	No licence costs ITSM processes based on ITIL practices
Server runs on Linux only Heavier to set up than simple PHP help desks	You have to host and maintain the server yourself Website content is mainly in German
Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
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 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.