osTicket vs Zammad

A side-by-side comparison of osTicket and Zammad — stars, license, self-host difficulty, deploy options, and what each replaces.

TaglineWidely-deployed open-source support ticketing systemWeb-based open-source helpdesk and customer support ticketing system
CategoryHelpdesk & SupportHelpdesk & Support
ReplacesZendesk, FreshdeskZendesk, Freshdesk
GitHub stars3.8k5.7k
LanguagePHPRuby
LicenseGPL-2.0AGPL-3.0
Self-host difficulty
4/5
Involved
4/5
Involved
Deploy options
Docker
Docker Compose
Manual
Docker Compose
Kubernetes
Manual
Managed hosting
Last updated26 days ago4 days ago
View repoView repo
osTicket

Widely-deployed open-source support ticketing system

Zammad

Web-based open-source helpdesk and customer support ticketing system