osTicket vs Zammad:
self-hosting, managed support and channel scope.
Compare osTicket and Zammad for self-hosted help desks, operational ownership, commercial hosting and support-channel needs.
Choose around your work.
Check the retained plan.
Both products offer free self-hosted open-source software, but someone must run the service. osTicket focuses on ticket intake, filters and a customer portal, with commercial hosting provided through SupportSystem. Zammad offers its own paid hosted editions with different agent and channel allowances. Start with who owns operations, then test ticket intake, escalation and knowledge access.
Seven differences that change the shortlist
| Buying question | osTicket | Zammad |
|---|---|---|
| Free access | Self-hosted open-source software | Self-hosted open-source software |
| Hosted service | Commercial SupportSystem arrangement | Paid Zammad hosted editions |
| Intake focus | Email, web forms and API enquiries | Hosted channel scope varies by edition |
| Escalation | Ticket filters and service-level handling | Hosted Professional adds SLAs |
| Knowledge evaluation | Review customer portal and knowledge workflow | Hosted knowledge-base language scope differs by tier |
| Operational responsibility | Own hosting, updates, backups and email setup | Own operations when self-hosted; managed hosted option |
| Budget boundary | Infrastructure, support and commercial hosting | Infrastructure or hosted agent tier plus optional extras |
Four worked buying briefs
These are hypothetical scenarios with explicit assumptions. They do not establish equal capabilities, measured usability or a negotiated price.
| Buying brief | osTicket | Zammad |
|---|---|---|
| A team with an established server owner | Evaluate the free self-hosted download. | Evaluate the free self-hosted deployment. |
| A support team with no maintenance owner | Request a SupportSystem hosting scope. | Evaluate the paid hosted service. |
| Six agents considering managed hosting | Quote the required SupportSystem seats and functions. | Six agents exceed hosted Starter’s five-agent cap. |
| Email support requiring response deadlines | Test ticket filters and service-level escalation. | Evaluate hosted Professional or appropriate self-hosted scope. |
A team with an established server owner
Can software licence cost be zero?
osTicket: Evaluate the free self-hosted download.
Zammad: Evaluate the free self-hosted deployment.
Hosting, maintenance, mail delivery and recovery still require resources.
A support team with no maintenance owner
What should be priced?
osTicket: Request a SupportSystem hosting scope.
Zammad: Evaluate the paid hosted service.
Agree who restores tickets and attachments after a failure.
Six agents considering managed hosting
What capacity check matters?
osTicket: Quote the required SupportSystem seats and functions.
Zammad: Six agents exceed hosted Starter’s five-agent cap.
Hosted agent limits do not establish a self-hosted agent limit.
Email support requiring response deadlines
What needs a pilot?
osTicket: Test ticket filters and service-level escalation.
Zammad: Evaluate hosted Professional or appropriate self-hosted scope.
Use a ticket created outside business hours and an owner who is absent.
Assign an owner for recovery
A self-hosted help desk is an operational service, not just an installation. Write down who monitors it, applies updates, renews certificates and can restore the database and attachments. Assign a substitute so one person’s absence does not strand the queue.
Restore a synthetic ticket and attachment into a controlled environment. Check that mail fetching and outgoing replies remain correct after recovery. Record the actual work and infrastructure cost rather than treating a zero licence fee as a zero total cost.
Test the channels customers actually use
Start with a customer email, a form enquiry and a reopened ticket. Check threading, reassignment, duplicate handling and the reply-from address. A channel logo alone does not establish that every required operation is supported.
For service deadlines, define business hours and escalation ownership. Make a sample ticket overdue and review both the agent notification and the customer-facing message. If a knowledge base matters, search it on a phone using ordinary customer language and the languages you publish.
Questions before you choose
Are osTicket and Zammad free hosted help desks?
Their open-source self-hosted software is free. Commercial hosting is a separate paid service, so infrastructure and operational responsibilities must be priced.
Does a hosted Zammad trial prove the cheapest plan fits?
No. The 30-day hosted trial uses Professional. Choose the ongoing edition by required channels, agents and service features.
What should a self-hosting cost comparison include?
Include servers, backups, monitoring, mail configuration, update work, support and a tested recovery process. Measure the time your own team spends maintaining the service.
Keep the assumptions with the figures
Use the date, billing cycle, units and limits with each example. Check current account terms before purchasing. Unverified prices and model costs stay unpriced.
Download the buying examples as JSON ↓Share the comparison
Use these examples when discussing the shortlist with your team.