Netdata
An advanced monitoring software providing real-time performance and health monitoring for your infrastructure.
There are 3 open-source alternatives to Nagios in this directory. The most popular is Netdata with 78.4k GitHub stars, followed by Prometheus(63.5k stars). All are open source, free to use, and many can be self-hosted.
| # | Tool | Stars | Language | License |
|---|---|---|---|---|
| 1 | Netdata An advanced monitoring software providing real-time performance and health monitoring for your infrastructure. | 78.4k | C | GNU General Public License v3.0 |
| 2 | Prometheus The Prometheus monitoring system and time series database for collecting and storing metrics as time series data. | 63.5k | Go | Apache License 2.0 |
| 3 | Checkmate Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. | 4.5k | JavaScript | GNU Affero General Public License v3.0 |
An advanced monitoring software providing real-time performance and health monitoring for your infrastructure.
The Prometheus monitoring system and time series database for collecting and storing metrics as time series data.
Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations.
The top three are Netdata(78.4k stars), Prometheus(63.5k stars), Checkmate(4.5k stars). All are open source and free to use.
Yes. Every tool listed here is open source and free to use in your own projects. Many can be self-hosted on your own infrastructure, which means no subscription fees and full control over your data.
Many of the alternatives listed are self-hostable. Each tool's page lists hosting details, system requirements, and licensing terms.
Get notified about new tools and updates to existing ones.