Open Source Ticketing Systems
An open source ticketing system is a legitimate choice for the right team and a false economy for everyone else. Here is how to tell which one you are.
The main open source ticketing system options
| Project | Best for | Watch out for |
|---|---|---|
| osTicket | Straightforward ticketing, long track record | Dated interface, PHP stack to maintain |
| FreeScout | Teams who want a Help Scout-like inbox | Useful features live in paid modules |
| Zammad | Feature-rich, modern interface | Heavier to run, Ruby and Elasticsearch |
| GLPI | IT asset management plus ticketing | ITSM-shaped, not customer-support-shaped |
| UVdesk | Ecommerce-oriented support | Smaller community |
| Chatwoot | Multi-channel and messaging first | Different model, closer to Intercom than Zendesk |
What self-hosting really costs
Nothing on this list is free once it's running. Budget honestly for all of it.
When open source genuinely wins
If none of those apply, a paid plan on a hosted helpdesk is almost certainly cheaper once you count your own time.
Duplicates are worse here, not better
Self-hosted helpdesks have the same duplicate problem as commercial ones, with less tooling around it. Detection features that exist in commercial products, thin as they are, generally don't exist at all here.
If you go this route, build measurement in early: count tickets from the same requester within a short window and you will have a duplicate rate before it becomes an argument about staffing.
Frequently asked questions
Is an open source help desk really free?
The licence is. A self hosted ticketing system still costs you servers, backups, upgrades and the person who owns them, so a free open source ticketing system usually lands near a paid SaaS tier once you count the time. An open source helpdesk pays off when you need control, not when you need to save money.
What's the best open source ticketing system?
osTicket for straightforward ticketing, Zammad for a modern feature set, FreeScout if you want a shared-inbox feel. All three are real projects with real communities.
Is self-hosting cheaper than SaaS?
Only at scale or under a policy constraint. For a small team, one day of engineer time a month usually exceeds the SaaS bill.
Can open source handle high volume?
Yes, with the infrastructure and the person to run it. The software is rarely the limiting factor.
Whatever you run it on
Duplicate tickets are a queue problem, not a vendor problem. Ticket Merger connects to Zendesk and Freshdesk today.
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