osTicket
- Starting price
- Free tier available
- Reviews
- 4.4/5 (~44 G2 reviews)
- Free trial
- Free tier + 30 days
- Deployment
- Cloud + self-host
- Best for
- Teams wanting a free, open-source, self-hosted ticketing system
Best ITSM / Help Desk Ticketing Software · 2026
osTicket vs Zammad: on our data-weighted scoring, Zammad edges ahead (8.3 vs 7.7/10). osTicket starts at Free tier available and is best for teams wanting a free, open-source, self-hosted ticketing system; Zammad starts at EUR 7/agent/mo and is best for teams wanting a modern, open-source help desk with an optional managed cloud. Choose Zammad for the stronger overall track record; consider osTicket if its pricing model or fit matches your environment better. Side-by-side table below.
Affiliate disclosure: Some links may be affiliate or partner links. If you sign up through one, we may earn a commission at no extra cost to you. This never changes our scores or rankings. Learn more.
Six criteria, each scored 0–10 on the same scale from real review data, public pricing and feature coverage. See our methodology →
| Criterion | osTicket | Zammad |
|---|---|---|
| Editorial | 7.7 | 8.3 |
| User reviews | 8.8 | 9.0 |
| Adoption | 4.4 | 2.8 |
| Affordability | 9.5 | 9.5 |
| Feature breadth | 6.0 | 9.0 |
| Ease of trial | 10.0 | 10.0 |
| osTicket | Zammad | |
|---|---|---|
| Starting price | Free tier available | EUR 7/agent/mo |
| Pricing model | per user | per user |
| Free trial / tier | Free tier + 30 days | Free tier + free trial |
| Best for | Teams wanting a free, open-source, self-hosted ticketing system | Teams wanting a modern, open-source help desk with an optional managed cloud |
| Deployment | Cloud + self-host | Cloud + self-host |
| G2 rating | 4.4/5 (44) | 4.5/5 (10) |
| Capterra rating | — | — |
| Our score | 7.7 | 8.3 |
You need teams wanting a free, open-source, self-hosted ticketing system.
You need teams wanting a modern, open-source help desk with an optional managed cloud.
Zammad bills on a per user model from EUR 7/agent/mo (free tier available), while osTicket uses a per user model from Free tier available (free tier available). Because the models differ, the cheaper option flips depending on your fleet size — model both at your seat/endpoint count.
Zammad ships 9 headline capabilities (Open-source self-hosted core, Multi-channel (email, chat, Telegram) and deploys Cloud + self-host. osTicket ships 6 (Open-source self-hosted core, Custom fields + ticket filters, Email piping + ticketing, SLA + agent collision avoidance), deploying Cloud + self-host.
Zammad holds 4.5/5 (~10 G2 reviews); osTicket holds 4.4/5 (~44 G2 reviews). On our data-weighted score, Zammad edges ahead (8.3 vs 7.7/10). Pick osTicket instead when teams wanting a free, open-source, self-hosted ticketing system. See Zammad alternatives or osTicket alternatives.