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Open Source Uptime Monitoring Tools

A curated collection of the best open source tools for checking the availability and response time of services..

Uptime Kuma

Self-hosted uptime monitoring with a clean dashboard

  • Stars

    92,805

  • Last commit

    10 hours ago

  • License

    MIT
Monitors websites, APIs, and services with real-time alerts, a status page, and support for dozens of notification channels. Self-hosted and Docker-friendly.

Open Source Alternative to:

BetterStack

Cachet

Professional status page system for transparent downtime communication

  • Stars

    15,262

  • Last commit

    8 days ago

  • License

    Unknown
Open-source status page platform that helps organizations communicate system status and incidents effectively with customizable components and metrics tracking

Open Source Alternative to:

BetterStack

Checkmate

Beautiful open-source monitoring for modern infrastructure

  • Stars

    10,977

  • Last commit

    11 hours ago

  • License

    AGPL-3.0
Monitor servers, websites, Docker containers, and infrastructure with real-time insights, instant alerts, and powerful analytics. Self-hosted solution.

Open Source Alternative to:

BetterStack

Gatus

Advanced automated status page for real-time monitoring

  • Stars

    12,381

  • Last commit

    1 day ago

  • License

    Apache-2.0
A highly customizable monitoring solution that provides automated status pages, extensive alerting options, and detailed testing capabilities for your services and infrastructure

Open Source Alternative to:

BetterStack

OpenStatus

Status page and uptime monitoring for growing teams

  • Stars

    9,220

  • Last commit

    7 hours ago

  • License

    AGPL-3.0
Open-source status page and uptime monitor that tracks endpoints from 28 global regions, communicates incidents, and helps satisfy SOC 2 audit requirements.

Open Source Alternative to:

BetterStack

Healthchecks

Get alerted when cron jobs and scheduled tasks miss their run

  • Stars

    10,444

  • Last commit

    2 days ago

  • License

    BSD-3-Clause
Monitors cron jobs, background workers, and scheduled tasks by expecting periodic HTTP pings and alerting you when they stop arriving on time.

Open Source Alternative to:

BetterStack

OneUptime

Comprehensive monitoring and incident management platform

  • Stars

    7,751

  • Last commit

    7 hours ago

  • License

    Apache-2.0
All-in-one solution for uptime monitoring, incident management, and status pages to keep your services running smoothly

Open Source Alternative to:

DataDog

Kener

Deploy a professional status page in minutes, no coding required

  • Stars

    5,213

  • Last commit

    2 days ago

  • License

    MIT
Free, open-source status page and uptime monitor with Docker deployment. Track 11 service types, manage incidents, schedule maintenance, and notify subscribers instantly.

Open Source Alternative to:

DataDog

Tianji

Website analytics, uptime monitoring, and server status in one

  • Stars

    3,119

  • Last commit

    11 hours ago

  • License

    Apache-2.0
Self-hostable platform combining website analytics, uptime monitoring, server status, Docker tracking, status pages, and telemetry for indie developers and small teams.

Open Source Alternative to:

Google Analytics

Peekaping

Self-hosted uptime monitoring you own and control

  • Stars

    1,204

  • Last commit

    8 hours ago

  • License

    MIT
Open-source uptime monitoring solution with real-time alerts, status pages, and comprehensive checks for websites, APIs, databases, and services.

Open Source Alternative to:

BetterStack

GlitchTip

Error tracking, performance, and uptime in one place

  • Stars

    Stars growing over the last 30 days170

  • Last commit

    5 days ago

  • License

    MIT
Self-hostable error tracking platform compatible with Sentry SDKs. Tracks exceptions, monitors performance, checks uptime, and collects logs without the Sentry price tag.

Open Source Alternative to:

DataDog

EasyMonitor

Self-hosted uptime monitoring that runs on your hardware, not their servers

  • Stars

    83

  • Last commit

    2 months ago

  • License

    MIT
Deploy your own uptime and performance monitoring with HTTP/ICMP checks, multi-region probes, and custom status pages. MIT licensed, runs on minimal hardware.

Open Source Alternative to:

BetterStack

Uptimepage

Monitors websites and APIs, pages on-call, and publishes a status page

  • Stars

    48

  • Last commit

    14 hours ago

  • License

    AGPL-3.0
Hosted uptime monitoring with multi-region checks, eight monitor types, on-call rotations, escalation policies, and public status pages for SaaS teams and agencies.

Open Source Alternative to:

UptimeRobot

StatusScout

Complete website health monitoring and security scanning

  • Stars

    16

  • Last commit

    5 months ago

  • License

    Unknown
Monitor website uptime, detect security vulnerabilities, find broken links, and simulate user flows. Get instant alerts when issues arise. Free tier available.

Open Source Alternative to:

BetterStack
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