MantisBT
Umami
| Feature | MantisBT | Umami |
|---|---|---|
| Pricing | Free / from $4.95/mo | Free / from $9/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 3.9 / 5 | 4.5 / 5 |
| Best For | developers, small-teams, open-source-projects, budget-conscious-teams | indie-developers, privacy-focused-sites, bloggers, small-businesses |
| Founded | 2000 | 2020 |
| Bug Tracking | ✓ | ✗ |
| Custom Fields | ✓ | ✗ |
| Email Notifications | ✓ | ✗ |
| Role Management | ✓ | ✗ |
| Plugins | ✓ | ✗ |
| Time Tracking | ✓ | ✗ |
| Page Views | ✗ | ✓ |
| Custom Events | ✗ | ✓ |
| Realtime Dashboard | ✗ | ✓ |
| Utm Tracking | ✗ | ✓ |
| Multi Site | ✗ | ✓ |
| Api | ✗ | ✓ |
| Teams | ✗ | ✓ |
✓ MantisBT Pros
- Free and open-source
- Easy to set up
- Lightweight
- Extensible with plugins
✗ MantisBT Cons
- Dated interface
- Limited agile features
- Small community vs alternatives
✓ Umami Pros
- Completely open-source and self-hostable for free
- Beautiful, clean dashboard interface
- No cookies required (GDPR/CCPA compliant by default)
- Lightweight script (under 2KB) does not slow sites
✗ Umami Cons
- Limited advanced analytics features
- No conversion funnel or cohort analysis
- Self-hosting requires database management
The Verdict
MantisBT is built for developers and small teams, with a focus on bug-tracking and custom-fields. Umami targets indie developers and privacy focused sites and leads with page-views and custom-events.
Pricing is close: MantisBT starts at $4.95/mo versus $9/mo for Umami — not a deciding factor on its own.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Umami edges out on user ratings (4.5 vs 3.9). While both are well-regarded, that gap reflects real differences in user satisfaction worth considering.
Feature-wise, Umami offers broader built-in capabilities (7 features vs 6), while MantisBT takes a more focused approach — which can mean a simpler, faster onboarding experience.
Bottom line: Umami has a slight overall edge — but if free and open-source matters most to you, MantisBT may still be the right call.