Uptime Monitoring Tools

Best Uptime Monitoring tools by public signals

These picks are computed from scored public evidence. Use the openness column in the ranking to separate OSI-approved, source-available, open-core, proprietary, and unverified-license tools.

Best overallUptime Kuma96 score License-safe pickUptime KumaOSI-approved OSS Fastest shippingUptime Kuma94 shipping

Use Case Rankings

Ordered by ToolVitals score, then health, shipping, confidence, GitHub stars, and name.

#	Tool	Health	Shipping	Openness	Stars	Score	Status
01	Uptime Kuma A fancy self-hosted monitoring tool	96	94	OSI-approved OSS	93.1k	96	Active
02	Kener Stunning status pages, batteries included!	96	94	OSI-approved OSS	5.2k	95	Active
03	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. Don't be shy, join here: https://discord.com/invite/NAb6H3UTjK :)	95	94	OSI-approved OSS	11k	95	Active
04	OpsKnight Open-source platform for on-call management, incident response, and status pages.	89	93	OSI-approved OSS	58	91	Active
05	OpenStatus 🫖 Status page with uptime monitoring & API monitoring as code 🫖	92	87	OSI-approved OSS	9.2k	90	Active
06	Uptimekit Admin dashboard and public status pages.	91	87	OSI-approved OSS	129	90	Active
07	Kuvasz Kuvasz (pronounce as [ˈkuvɒs]) is an open-source uptime and SSL monitoring service, with multiple notification channels, status pages, IAC support via YAML, Prometheus integration, a complete REST API and many more!	90	91	OSI-approved OSS	668	90	Active
08	Supercheck Testing, monitoring, and reliability tooling as code.	90	89	OSI-approved OSS	218	89	Active
09	Maintenant Drop a container. Your stack is monitored.	86	91	OSI-approved OSS	532	88	Active
10	Healthchecks Open-source cron job and background task monitoring service, written in Python & Django	85	89	OSI-approved OSS	10.5k	86	Active
11	Warden Open-source uptime monitoring built in Go.	85	89	OSI-approved OSS	4	86	Active
12	Yet Another Status Page A modern, open-source status page built with Next.js and PayloadCMS, designed for flexible and reliable infrastructure monitoring.	85	85	OSI-approved OSS	39	85	Active
13	Arki Uptime Uptime monitor and status page powered by Upptime.	84	86	OSI-approved OSS	0	85	Active
14	Telegai Status Uptime monitor and status page powered by Upptime.	84	86	OSI-approved OSS	0	85	Active
15	Upptime ⬆️ GitHub Actions uptime monitor & status page by @AnandChowdhary	82	84	OSI-approved OSS	17.2k	83	Active
16	Fettle Beautiful GitHub-powered status page for real-time updates and incident management.	81	82	OSI-approved OSS	282	82	Active
17	Gatus Automated developer-oriented status page with alerting and incident support	83	71	OSI-approved OSS	12.5k	78	Active
18	ohstatus Beautiful status page & uptime monitor. Ready for production out of the box.	79	76	OSI-approved OSS	3	78	Active
19	Peekaping Open Source Uptime Kuma Alternative	75	59	OSI-approved OSS	1.2k	69	Active
20	Harbour Space Status Public status page for Harbour.Space services.	69	52	OSI-approved OSS	0	62	Warning
21	Uptimer Serverless uptime monitoring and status page on Cloudflare edge.	68	49	OSI-approved OSS	—	61	Warning
22	STS A fully open-source status page with Gatus backend and Payload CMS	59	45	OSI-approved OSS	23	54	Warning
23	PongHub Free endpoint monitoring with one-click deployment.	59	39	OSI-approved OSS	224	51	Warning
24	UptimeMonitor Server Enterprise-grade uptime monitoring system.	56	37	OSI-approved OSS	68	48	Warning
25	Uni Status Open-source uptime monitoring and status page platform.	47	20	OSI-approved OSS	3	37	Critical
26	CState 🔥 Open source static (serverless) status page. Uses hyperfast Go & Hugo, minimal HTML/CSS/JS, customizable, outstanding browser support (IE8+), preloaded CMS, read-only API, badges & more.	46	22	OSI-approved OSS	2.9k	36	Critical
27	Pongo Self-hosted uptime monitoring and status pages configured entirely in TypeScript.	41	24	OSI-approved OSS	31	34	Critical
28	bitwobbly Open-source website monitoring and public status pages built on Cloudflare Workers.	30	13	OSI-approved OSS	3	23	Critical
29	Upstat Open-source self-hosted status monitoring tool.	29	10	OSI-approved OSS	200	22	Critical
30	Lunalytics 🚀 Open source monitoring tool built with Node.js	19	3	OSI-approved OSS	735	12	Critical
31	CheckCle CheckCle is a self-hosted, open-source monitoring platform for seamless, real-time full-stack systems, applications, and infrastructure. It provides real-time uptime monitoring, distributed checks, incident tracking, and alerts. All deployable anywhere.	16	0	OSI-approved OSS	3.3k	10	Critical
32	Stremio Status Unified addon, status page, and health metrics for Stremio services.	14	2	OSI-approved OSS	94	9	Critical
33	Status Page Aggregator Aggregates status from infra, API, and vendor status pages into a unified feed for production monitoring.	12	0	OSI-approved OSS	21	7	Critical
34	ClearStatus Open source status pages.	10	0	OSI-approved OSS	1	6	Critical
35	Aether Status Open-source status and monitoring platform for modern infrastructure.	9	0	OSI-approved OSS	0	5	Critical