Zammad

What is Zammad?

Zammad is an open-source help desk and customer support platform licensed under GNU AGPLv3. It consolidates support requests from email, phone, chat, social media, and web forms into a single ticketing interface, with strong automation, reporting, and enterprise authentication features. A managed cloud version is also available for teams that don't want to self-host.

Who is it for?

Zammad suits technically capable IT and support teams — particularly in Europe and at companies with data sovereignty requirements — that want a capable, auditable help desk without vendor lock-in or per-seat licensing fees. It's also a strong option for organizations already running Linux infrastructure that want to own their support tooling.

Strengths

• Truly open source — full AGPLv3 source code, self-hostable with no license costs; the project commits to staying open source.
• Competitive cloud pricing — cloud tiers undercut Zendesk on price-to-value, with the Plus tier at €24/agent/month covering features Zendesk locks behind $55+ plans.
• Multi-channel ticketing — email, phone, live chat, Twitter/X, Facebook, and web forms all feed into one queue.
• Enterprise auth — LDAP, Active Directory, SAML, OAuth, and SSO supported out of the box.
• REST API — full API access enables deep integration with internal tools and custom workflows.

What to consider

• Self-hosting carries real operational overhead: server costs, patching, security updates, and admin time.
• The UI is functional but less polished than Zendesk or Freshdesk — less intuitive for non-technical agents.
• AI-assisted features are more limited compared to newer SaaS competitors.

Bottom line

Zammad is the go-to open-source help desk for teams that prioritize data control, cost transparency, and technical flexibility. If you have the infrastructure skills in-house, the self-hosted edition is one of the best free help desk options available; the cloud tier is also a credible budget-friendly alternative to Zendesk.