Side by side
Nagios XI vs SpeedFan
Both stand on hardware monitoring software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APILinuxMac+3
Nagios XI offers self-hosted monitoring, a limited free edition, and perpetual paid licenses priced by node count. Its 30-day trial includes Enterprise features and direct technical support; compare the edition features and deployment requirements before selecting a license.
Visit Nagios XI Free plan Windows
SpeedFan combines hardware monitoring, disk-health readings, and conditional fan control at no cost. Its power-user focus and hardware compatibility requirements make careful configuration important.
Visit SpeedFanThe facts
| Nagios XI | SpeedFan | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | No | Not published |
| Runs on | API, Linux, Mac, Self-hosted, Web, Windows | Windows |
| Lowest paid plan | Standard: $2,595, paid once | Free or on request |
| Plans published | 6 | 1 |
| Maker | Not published | SpeedFan |
| Website | nagios.com | almico.com |
| On hardware monitoring software | #22 of 59 | #50 of 59 |
Nagios XI: what it does well
- Checks servers, network devices, applications, and services.
- Standard includes auto-discovery and dashboards.
- Enterprise includes SLA reports and capacity planning.
- Trial includes unlimited monitoring and technical support.
- Paid licenses allow unlimited services per licensed node.
What to know first
- Requires self-hosted Linux deployment.
- Free edition is limited to 7 Nodes or 100 Services, whichever comes first.
- 100-node Standard license costs 2595.00 USD once.
- Paid licenses include first-year support only.
SpeedFan: what it does well
- Free Windows software
- Monitors voltages, fans, and temperatures
- Reads S.M.A.R.T. disk information
- Online analysis uses millions of reports
- Supports custom events
What to know first
- Fan control needs compatible motherboard circuitry
- Latest listed version is 4.52
- Maker cautions against unattended configurations
- Hardware access may not suit every system
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