What is Nagios?
A free, community-supported monitoring system that helps organizations detect infrastructure issues and prevent downtime by monitoring servers, networks, applications, and services. It offers a modular plugin architecture for extensibility and includes optional web-based dashboards and visualization tools.
Nagios pricing
We don't have Nagios's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What Nagios does
The capabilities that matter for observability tools, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Metrics
- ✓
- Log management
- ✓
- Distributed tracing
- -
- Application performance monitoring
- ✓
- Real-user monitoring
- -
- Alerting
- ✓
- On-call / incident management
- ✓
- Dashboards
- ✓
- OpenTelemetry-native
- -
- Hosting
- Cloud + self-hosted
Platform & deployment
Independently observed- CLI
- macOS
- Web
- Linux
- Windows
- On-premise
- Self-hosted
Integrations (26)
Independently observed- Grafana
- InfluxDB
- Prometheus
- Apache
- Nginx
- IIS
- Tomcat
- MySQL
- PostgreSQL
- Oracle
- SQL Server
- MongoDB
- LDAP
- Active Directory
- JBoss
- WebLogic
- Citrix
- PagerDuty
- Slack
- ServiceNow
- DB2
- EC2
- VMware
- Hyper-V
- MSSQL
- IPMI
Nagios alternatives
Other observability tools we track, ranked by the same independent score.
- Chronospherelow · 19%
- Netdatamedium · 73%
- GroundcoverCloud observability platform that keeps all data in your infrastructure while automatically collecting comprehensive telemetry through edge processingmedium · 73%
- MiddlewareAI-powered observability platform that automatically detects and fixes infrastructure and application issuesmedium · 74%
- SematextFull-stack observability platform combining metrics, logs, and traces with flexible consumption-based pricinglow · 49%
- Elastic Observabilitymedium · 60%
Compare Nagios
Side by side against other observability tools, attribute by attribute, with a source on every value.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Nagios, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Integrations | 100 | 0.07 | 7.3 | ✓ |
| Capabilities | 100 | 0.06 | 6.3 | ✓ |
| Stars | 0 | 0.03 | 0.0 | - |
| Dependent projects | 0 | 0.06 | 0.0 | - |
| Development activity | 0 | 0.09 | 0.0 | - |
| Release cadence | 0 | 0.05 | 0.0 | - |
| Security posture | 0 | 0.12 | 0.0 | - |
| Package downloads | 0 | 0.14 | 0.0 | - |
| Security score | 0 | 0.04 | 0.0 | - |
| Developer Q&A activity | 0 | 0.06 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.