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 Zendesk: on our data-weighted scoring, Zendesk edges ahead (7.8 vs 7.7/10). osTicket starts at Free tier available and is best for teams wanting a free, open-source, self-hosted ticketing system; Zendesk starts at $19/agent/mo and is best for customer-support-heavy teams wanting a polished ticketing/CX platform. Choose Zendesk 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 | Zendesk |
|---|---|---|
| Editorial | 7.7 | 7.8 |
| User reviews | 8.8 | 8.6 |
| Adoption | 4.4 | 10.0 |
| Affordability | 9.5 | 3.5 |
| Feature breadth | 6.0 | 5.0 |
| Ease of trial | 10.0 | 6.0 |
| osTicket | Zendesk | |
|---|---|---|
| Starting price | Free tier available | $19/agent/mo |
| Pricing model | per user | per technician |
| Free trial / tier | Free tier + 30 days | 14 days |
| Best for | Teams wanting a free, open-source, self-hosted ticketing system | Customer-support-heavy teams wanting a polished ticketing/CX platform |
| Deployment | Cloud + self-host | Cloud |
| G2 rating | 4.4/5 (44) | 4.3/5 (6000) |
| Capterra rating | — | — |
| Our score | 7.7 | 7.8 |
You need teams wanting a free, open-source, self-hosted ticketing system.
You need customer-support-heavy teams wanting a polished ticketing/cx platform.
Zendesk bills on a per agent model from $19/agent/mo (14 days trial), 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.
Zendesk ships 5 headline capabilities (Omnichannel ticketing, Knowledge base, Automation + AI, Reporting) and deploys Cloud. osTicket ships 6 (Open-source self-hosted core, Custom fields + ticket filters, Email piping + ticketing, SLA + agent collision avoidance), deploying Cloud + self-host.
Zendesk holds 4.3/5 (~6k G2 reviews); osTicket holds 4.4/5 (~44 G2 reviews). On our data-weighted score, Zendesk edges ahead (7.8 vs 7.7/10). Pick osTicket instead when teams wanting a free, open-source, self-hosted ticketing system. See Zendesk alternatives or osTicket alternatives.