Uptime Kuma
FreeSelf-hosted monitoring tool — fancy alternative to Uptime Robot
About Uptime Kuma
Uptime Kuma is a self-hosted monitoring tool that checks whether your websites, APIs, and TCP ports are up and alerts you when they go down. Covers HTTP/S, TCP, DNS, ping, Steam game servers, and Minecraft servers as monitor types. Around 60,000 GitHub stars, making it one of the most-starred self-hosted tools available. The built-in status page is clean and publicly shareable — many teams point customers at a subdomain running Uptime Kuma instead of paying for Statuspage or Better Uptime. Notification channels include Slack, Discord, Telegram, PagerDuty, email, webhooks, and 90-plus others. Runs as a single Docker container on almost any hardware — a Raspberry Pi handles monitoring dozens of endpoints without any issues. Where it falls short: SQLite backend and single-process architecture mean no horizontal scaling and no multi-user access control. All operators share a single admin account. Alerting is solid for simple up/down threshold checks but lacks the query language and multi-condition logic of Prometheus plus Alertmanager for complex scenarios.
Key Features
Pricing Plans
Free (Self-hosted)
- Unlimited monitors
- 90+ notification services
- Status pages
- Multi-language
Pros
- Beautiful, modern UI
- 90+ notification channels
- Easy Docker setup
- Completely free
Cons
- Self-hosted only — no cloud option
- Single-node (no distributed monitoring)
- No built-in incident management
Best For
- Solo developers and small teams monitoring their own services without paying UptimeRobot
- Teams wanting a clean public status page without Statuspage or Better Uptime costs
- Self-hosters running a Raspberry Pi or small VPS to monitor their homelab stack
Not Ideal For
- Teams needing multi-user access with different roles and permission levels
- Organizations requiring complex alerting logic, SLA tracking, or Prometheus integration
Potential Deal Breakers
- No multi-user support — all operators share a single admin account with no access control
- SQLite backend and single-process: no horizontal scaling or high-availability configuration
- Alerting logic is basic — no multi-condition rules or query language like Prometheus
Data & Privacy
Fully self-hosted monitoring. All monitoring data, alert history, and status page data stored locally. No cloud dependency, no telemetry, no external data transmission. Single Docker container with SQLite database.
Who Is This For?
Hands-on tested May 2026
Signup Experience
Single Docker command gets you a running instance. First login creates an admin account. Add your first monitor in under a minute — paste a URL, set the check interval, done. The interface is clean and immediately useful. Status pages can be created and shared publicly. Notification setup for Discord, Slack, Telegram, or email takes 2 minutes.
For Home Users
Essential for anyone running self-hosted services. Monitor your Home Assistant, Nextcloud, Pi-hole, and other services from one dashboard. Get notified via Discord or Telegram when something goes down. The public status page is great for sharing service health with family members. Uses minimal resources — runs on anything. Genuinely one of the first things every homelab should set up.
For Business Users
Good for small teams and startups monitoring their infrastructure without paying for Datadog or PagerDuty. The status page feature replaces paid services like Statuspage.io. For larger organizations, it lacks log aggregation, APM, distributed tracing, and team escalation policies. Best as a lightweight supplement to or replacement for expensive monitoring tools for teams under 20. Not a substitute for full observability platforms at scale.
Our Verdict
Uptime Kuma does one thing well: tell you when something is down and notify the right channel. For solo developers and small teams it replaces UptimeRobot completely. The status page feature alone is worth running it. The single-user model and SQLite backend are real limitations at team scale — but for its intended audience it is close to perfect.