Open source monitor projects

Every project in the registry tagged monitor, ranked by real GitHub adoption.

projects 13 combined stars ★ 196K refresh nightly
01 Uptime Kuma ★ 93K

Self-hosted uptime monitoring with a clean dashboard

last push20 hours ago languageJavaScript licenseMIT
02 Sentry ★ 46K

Real-time error tracking and performance monitoring

last push15 hours ago languagePython license—
03 Gatus ★ 12K

Advanced automated status page for real-time monitoring

last push5 days ago languageGo licenseApache-2.0
04 spug ★ 11K

Spug is a lightweight agent-free automatic operation and maintenance platform designed for small and medium-sized enterprises. It integrates host management, ho

last push7 days ago languageJavaScript licenseAGPL-3.0
05 LibreHardwareMonitor ★ 9.3K

Libre Hardware Monitor is free software that can monitor the temperature sensors, fan speeds, voltages, load and clock speeds of your computer.

last push5 days ago languageC# licenseMPL-2.0
06 hertzbeat ★ 7.5K

An AI-powered next-generation open source real-time observability system.

last push25 hours ago languageJava licenseApache-2.0
07 monitoror ★ 4.4K

Unified monitoring wallboard — Light, ergonomic and reliable monitoring for anything.

last push4 days ago languageGo licenseMIT
08 MyPerf4J ★ 3.6K

High performance Java APM. Powered by ASM. Try it. Test it. If you feel its better, use it.

last push3 months ago languageJava licenseBSD-3-Clause
09 tianji ★ 3.1K

Tianji: Insight into everything, Website Analytics + Uptime Monitor + Server Status. not only another GA alternatives

last push4 days ago languageTypeScript licenseApache-2.0
10 webterminal ★ 1.7K

ssh rdp vnc telnet sftp bastion/jump web putty xshell terminal jumpserver audit realtime monitor rz/sz 堡垒机 云桌面 linux devops sftp websocket file management rz/s

last push11 days ago languagePython licenseLGPL-3.0
11 frostmourne ★ 1.5K

Frostmourne(霜之哀伤监控平台)是基于Elasticsearch, Prometheus, SkyWalking, InfluxDB,Mysql/TiDB,ClickHouse, SqlServer, IoTDB数据的分布式监控报警系统. Monitor & alert & alarm for Elastic

last push7 months ago languageJava licenseMIT
12 Peekaping ★ 1.2K

Self-hosted uptime monitoring you own and control

last push3 days ago languageGo licenseMIT
13 AutoKuma ★ 922

AutoKuma is a utility that automates the creation of Uptime Kuma monitors based on Docker container labels. With AutoKuma, you can eliminate the need for manual

last push5 months ago languageRust licenseMIT

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Frequently asked questions

How many open source monitor projects are there?

This registry tracks 13 projects tagged monitor, with 195,688 GitHub stars between them. The most-adopted is Uptime Kuma at 93,190 stars.

Are these monitor projects free to use?

Yes — 12 of the 13 carry an explicit open-source licence across 6 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which monitor project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these monitor projects still maintained?

10 of the 13 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.