Uptime Kuma vs Netdata: Monitoring Compared

Want to monitor your self-hosted services but unsure whether you need uptime checks or system metrics? Uptime Kuma and Netdata answer different questions — and most serious setups end up running both.

Quick Verdict

These tools solve different problems. Uptime Kuma monitors whether services are reachable (HTTP, TCP, DNS, ping). Netdata monitors how your server is performing (CPU, RAM, disk, network, per-process metrics). If you can only run one, pick the one that matches your biggest pain point. If a service going down unnoticed is your fear, use Uptime Kuma. If mysterious slowdowns and resource exhaustion are your problem, use Netdata.

Updated March 2026: Verified with latest Docker images and configurations.

Overview

Uptime Kuma (louislam/uptime-kuma:2.2.1) is a self-hosted uptime monitor. You add endpoints (URLs, ports, DNS records) and it pings them on a schedule. When something goes down, it sends notifications via 90+ integrations (Telegram, Discord, Slack, email, webhooks). Think self-hosted UptimeRobot.

Netdata (netdata/netdata:v2.9.0) is a real-time infrastructure monitoring agent. It collects thousands of metrics per second from your host OS, containers, applications, and services. It ships with pre-built dashboards and anomaly detection. Think self-hosted Datadog agent.

Feature Comparison

Feature	Uptime Kuma	Netdata
Primary function	Uptime/availability monitoring	System & application metrics
What it monitors	HTTP, TCP, DNS, ping, Docker containers, keywords	CPU, RAM, disk, network, processes, containers, apps
Monitoring checks	External (probes endpoints)	Internal (agent on host)
Docker image	louislam/uptime-kuma:2.2.1	netdata/netdata:v2.9.0
Default port	3001	19999
Notification integrations	90+ (Telegram, Discord, Slack, email, webhook)	Email, Slack, Discord, PagerDuty, webhook
Status pages	Yes (public, shareable)	No
Dashboards	Minimal (status list)	Extensive (real-time charts, pre-built)
Anomaly detection	No	Yes (ML-based)
Historical data	Yes (SQLite)	Yes (custom DB engine, low disk usage)
Multi-node monitoring	Via status pages only	Yes (Netdata Cloud or parent-child streaming)
RAM usage	~60-100 MB	~150-300 MB
Setup complexity	Very low	Low
License	MIT	GPL v3+

Installation Complexity

Uptime Kuma is one of the simplest self-hosted apps to deploy:

services:
  uptime-kuma:
    image: louislam/uptime-kuma:2.2.1
    container_name: uptime-kuma
    ports:
      - "3001:3001"
    volumes:
      - uptime-kuma-data:/app/data
    restart: unless-stopped

volumes:
  uptime-kuma-data:

No database, no dependencies, no environment variables. Start it, open port 3001, create an account.

Netdata requires host-level access for full metrics:

services:
  netdata:
    image: netdata/netdata:v2.9.0
    container_name: netdata
    ports:
      - "19999:19999"
    cap_add:
      - SYS_PTRACE
      - SYS_ADMIN
    security_opt:
      - apparmor:unconfined
    volumes:
      - netdata-config:/etc/netdata
      - netdata-lib:/var/lib/netdata
      - netdata-cache:/var/cache/netdata
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /etc/os-release:/host/etc/os-release:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
    restart: unless-stopped

volumes:
  netdata-config:
  netdata-lib:
  netdata-cache:

Netdata needs SYS_PTRACE for process monitoring, host /proc and /sys mounts for system metrics, and Docker socket access for container metrics. More setup, but it sees everything on your host.

Performance and Resource Usage

Resource	Uptime Kuma	Netdata
RAM (idle)	~60 MB	~150 MB
RAM (50 monitors)	~100 MB	~250 MB (1000+ metrics)
CPU (idle)	Negligible	1-3% (continuous collection)
Disk usage	~50 MB/month (SQLite)	~200 MB (tiered retention)
Network	Minimal outbound pings	Minimal (local collection)

Uptime Kuma is lighter because it only runs scheduled checks. Netdata continuously collects metrics at 1-second granularity, which costs more CPU but gives you real-time visibility.

Alerting

Uptime Kuma alerts when a monitored endpoint changes state — up to down or down to up. You set check intervals (minimum 20 seconds), retry counts, and notification channels. The alert model is binary: it’s up or it’s down.

Netdata alerts on metric thresholds — CPU above 90%, disk filling up, RAM exhausted, unusual network traffic. It ships with hundreds of pre-configured alerts and supports custom alert definitions. Alerts can trigger on rolling averages, rates of change, and anomaly scores.

For “is my service alive?” — Uptime Kuma is better. For “is my server about to have a problem?” — Netdata is better.

Status Pages

Uptime Kuma has a built-in public status page feature. Create a page, add your monitors, share the URL. Useful for showing service status to users or team members. You can customize branding and group monitors by category.

Netdata has no status page functionality. It’s a monitoring tool, not a status page tool.

Use Cases

Choose Uptime Kuma If…

• You need to know when services go down (and get notified fast)
• You want a public status page for your homelab or team
• You monitor external services you don’t control
• You want the simplest possible monitoring setup
• Resource usage matters — Uptime Kuma is very lightweight

Choose Netdata If…

• You need to understand why things are slow
• You want real-time dashboards showing CPU, RAM, disk, network
• You run multiple servers and want centralized metrics
• You want anomaly detection (ML-based, catches unusual patterns)
• You need per-container or per-process metrics

Run Both If…

• You want complete visibility — know when things go down AND understand resource trends
• Uptime Kuma handles availability alerts; Netdata handles performance diagnostics
• The combined resource cost (~200 MB RAM, 2% CPU) is trivial on any modern server

Final Verdict

If you need uptime checks with notifications, Uptime Kuma wins — it’s simpler, lighter, and purpose-built. If you need system metrics and dashboards, Netdata wins — nothing else gives you this depth of visibility this easily. Most self-hosters should run both: Uptime Kuma as the availability watchdog, Netdata as the performance microscope.

FAQ

Can Netdata replace Uptime Kuma?

Partially. Netdata can monitor HTTP endpoints via its httpcheck collector, but it lacks Uptime Kuma’s status pages, 90+ notification integrations, and purpose-built uptime monitoring UI.

Can Uptime Kuma monitor server resources?

No. Uptime Kuma monitors endpoint availability (is it responding?), not server resources (how much RAM is free?). For resource monitoring, use Netdata, Grafana + Prometheus, or Beszel.

Which is easier to set up?

Uptime Kuma. One container, no dependencies, no config files. Netdata requires host mounts and capabilities for full functionality.

Do they work together?

Yes. Uptime Kuma monitors service availability; Netdata monitors server health. You can even point Uptime Kuma at Netdata’s port (19999) to monitor whether Netdata itself is running.

Related

• How to Self-Host Uptime Kuma
• How to Self-Host Netdata
• Grafana vs Netdata
• Uptime Kuma vs Beszel
• Uptime Kuma vs Grafana
• Best Self-Hosted Monitoring
• Grafana vs Prometheus