Best Open Source Monitoring Tools

Open source monitoring tools, ranked by score and analyzed honestly. Part of our Observability coverage.

Ranked by score. Updated weekly.

1

Uptime Kuma

86

Self-hosted monitoring tool

86,770JavaScriptpermissive
2

Prometheus

86

Monitoring system and time series database

64,030Gopermissive
3

SkyWalking

85

APM and monitoring system

24,794Javapermissive
4

Jaeger

85

CNCF distributed tracing platform

22,796Gopermissive
5

Zipkin

85

Distributed tracing system

17,431Javapermissive
6

Thanos

85

Highly available Prometheus setup

14,070Gopermissive
7

VictoriaMetrics

83

Fast monitoring and time series DB

16,993Gopermissive
8

systeminformer

83

A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware. Brought to you by Winsider Seminars & Solutions, Inc. @ http://www.windows-internals.com

14,632Cpermissive
9

Grafana

81

Open observability and data visualization platform

73,747TypeScriptstrong-copyleft
10

SigNoz

81

OpenTelemetry-native observability with logs, traces, and metrics

26,900TypeScriptpermissive
11

OpenTelemetry Collector

81

Vendor-agnostic telemetry collection

6,984Gopermissive
12

Netdata

79

Real-time performance and health monitoring

78,812Ccopyleft
13

Highlight

77

Full-stack monitoring: error monitoring, session replay, logging

9,263TypeScriptpermissive
14

Sentry

71

Developer-first error tracking and performance monitoring

43,856Pythonsource-available
15

keep

71

The open-source AIOps and alert management platform

11,825Python
16

Crucix

70

Your personal intelligence agent. Watches the world from multiple data sources and pings you when something changes.

9,816JavaScriptstrong-copyleft
17

newrelic-ruby-agent

69

New Relic RPM Ruby Agent

1,208Rubypermissive
18

pyrra

67

Making SLOs with Prometheus manageable, accessible, and easy to use for everyone!

1,505Gopermissive
19

Uptrace

63

Open source APM with OpenTelemetry traces, metrics, and logs

4,197Gostrong-copyleft
20

cachet

61

🚦 Cachet, the open-source, self-hosted status page system.

15,047PHP

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