osTicket vs Zammad
| Tagline | Widely-deployed open-source support ticketing system | Web-based open-source helpdesk and customer support ticketing system |
| Category | Helpdesk & Support | Helpdesk & Support |
| Replaces | Zendesk, Freshdesk | Zendesk, Freshdesk |
| GitHub stars | 3.9k | 5.9k |
| Language | PHP | Ruby |
| License | GPL-2.0 | AGPL-3.0 |
| Self-host difficulty | 4/5 Involved | 4/5 Involved |
| Deploy options | Docker Docker Compose Manual | Docker Compose Kubernetes Manual |
| Managed hosting | ||
| Last updated | 3 months ago | yesterday |
| View repo | View repo |
Where each falls short
The honest trade-offs — what you give up with each, versus the proprietary tools they replace.
osTicket
- Dated UI/UX compared to modern incumbents
- No built-in live chat or modern messaging channels
- Limited automation and no native AI features
- Reporting is basic relative to Zendesk Explore
Zammad
- Resource-heavy: needs Elasticsearch plus a database, making setup and ops more demanding
- UI feels dated compared to Zendesk/Intercom
- No native modern live-chat widget on par with Intercom
- Smaller marketplace/integration ecosystem than the incumbents
Bottom line
Both are a similar lift to self-host; choose Zammad for the larger community and ecosystem. Zammad has seen more recent development. Open each guide below for deploy steps and the full feature gap.