Uptime Kuma vs UptimeRobot: Self-Hosted or SaaS?
Quick Verdict
Uptime Kuma is the better choice for anyone comfortable running Docker. You get unlimited monitors, full data ownership, and zero recurring costs — UptimeRobot’s free tier caps you at 50 monitors with 5-minute intervals, and the paid plan starts at $7/month. Unless you need monitoring from multiple geographic locations (which Uptime Kuma can’t do natively), self-hosting wins.
Overview
| Aspect | Uptime Kuma | UptimeRobot |
|---|---|---|
| Type | Self-hosted, open source | Cloud SaaS |
| License | MIT | Proprietary |
| Cost | Free (you provide the server) | Free tier (50 monitors) / $7+/month paid |
| First release | 2021 | 2010 |
| GitHub stars | 65,000+ | N/A (closed source) |
| Deployment | Docker container | No deployment needed |
Uptime Kuma is an open-source, self-hosted monitoring tool built with Node.js and Vue.js. It monitors HTTP, TCP, DNS, Docker containers, and more — all through an elegant web UI.
UptimeRobot is one of the most popular cloud-based uptime monitoring services. It has been around since 2010 and offers a generous free tier that many developers and small teams rely on.
Feature Comparison
| Feature | Uptime Kuma | UptimeRobot |
|---|---|---|
| HTTP(S) monitoring | Yes | Yes |
| TCP/UDP monitoring | Yes | Yes (TCP only on free) |
| Ping monitoring | Yes | Yes |
| DNS monitoring | Yes | No |
| Docker container monitoring | Yes | No |
| Game server monitoring | Yes (Steam) | No |
| MQTT monitoring | Yes | No |
| gRPC monitoring | Yes | No |
| Push/heartbeat monitoring | Yes | Yes (paid) |
| Keyword monitoring | Yes | Yes |
| SSL certificate monitoring | Yes | Yes |
| Monitor limit (free) | Unlimited | 50 |
| Check interval | 20 seconds minimum | 5 minutes (free) / 30 seconds (paid) |
| Status pages | Yes (built-in) | Yes (built-in) |
| Notification channels | 90+ | 12 |
| Multi-location checks | No (single instance) | Yes (multiple regions) |
| API access | Yes | Yes |
| Mobile app | No (responsive web) | Yes (iOS + Android) |
| Two-factor auth | Yes | Yes |
| Team/multi-user | Yes (v2.x) | Yes (paid) |
| Maintenance windows | Yes | Yes (paid) |
| Custom headers | Yes | Yes (paid) |
| Data retention | Unlimited (your storage) | 1-24 months (plan-dependent) |
| Response time graphs | Yes | Yes |
Pricing Comparison
| Plan | UptimeRobot | Uptime Kuma Equivalent |
|---|---|---|
| 50 monitors, 5-min interval | Free | Free (self-hosted) |
| 50 monitors, 1-min interval | $7/month ($84/year) | Free (self-hosted) |
| 100 monitors, 30-sec interval | $15/month ($180/year) | Free (self-hosted) |
| 200 monitors, 30-sec interval | $29/month ($348/year) | Free (self-hosted) |
| Unlimited monitors | Not available | Free (self-hosted) |
Self-hosting cost: A small VPS running Uptime Kuma costs $3-5/month. Even if you factor in server costs, Uptime Kuma is cheaper than UptimeRobot’s paid plans once you exceed the free tier.
Installation Complexity
Uptime Kuma: One Docker container, no database dependency. Takes under 5 minutes:
services:
uptime-kuma:
image: louislam/uptime-kuma:2
container_name: uptime-kuma
restart: unless-stopped
ports:
- "3001:3001"
volumes:
- uptime-kuma-data:/app/data
volumes:
uptime-kuma-data:UptimeRobot: No installation — sign up and start adding monitors. The trade-off is that you depend on their infrastructure and pricing.
Performance and Monitoring Reliability
| Aspect | Uptime Kuma | UptimeRobot |
|---|---|---|
| Check interval minimum | 20 seconds | 30 seconds (paid) / 5 minutes (free) |
| Monitoring location | Your server only | Multiple global regions |
| False positives | Depends on your server’s network | Low (multi-region confirmation) |
| Data ownership | 100% yours | UptimeRobot’s servers |
| Uptime of the monitor itself | Depends on your infrastructure | 99.9%+ SLA |
The key trade-off: UptimeRobot monitors from multiple locations worldwide, which reduces false positives from regional network issues. Uptime Kuma monitors from wherever you host it — if your server’s network has a blip, you may get a false alert. You can mitigate this by running Uptime Kuma on a separate VPS from your monitored services.
Privacy and Data Ownership
This is where self-hosting wins definitively.
| Concern | Uptime Kuma | UptimeRobot |
|---|---|---|
| Data location | Your server | UptimeRobot’s cloud (US/EU) |
| Who sees your URLs | Only you | UptimeRobot |
| Third-party access | None | Subject to their privacy policy |
| Internal service monitoring | Yes (no exposure) | Requires public endpoints |
| GDPR compliance | You control it | Depends on their DPA |
Uptime Kuma can monitor internal services on your network without exposing them to the internet. UptimeRobot can only monitor publicly accessible endpoints.
Community and Support
| Aspect | Uptime Kuma | UptimeRobot |
|---|---|---|
| Support | GitHub issues, community | Email support (paid plans) |
| Documentation | Good (wiki + community) | Good (knowledge base) |
| Update frequency | Regular (active development) | Continuous (SaaS) |
| Community size | Very large (65K+ GitHub stars) | Large (established since 2010) |
| Customization | Full (open source) | None |
Use Cases
Choose Uptime Kuma If…
- You want unlimited monitors without paying
- You need to monitor internal/private services
- Data privacy matters to you
- You want 20-second check intervals
- You need Docker container monitoring
- You want 90+ notification integrations
- You already run a home server or VPS
Choose UptimeRobot If…
- You don’t want to manage any infrastructure
- You need multi-region monitoring (reduced false positives)
- You need a native mobile app
- You’re monitoring fewer than 50 endpoints and 5-minute intervals are fine
- You want an established SLA-backed service
- Your organization requires vendor support contracts
Final Verdict
For the self-hosting audience, Uptime Kuma is the clear winner. It offers more features, zero cost, full privacy, and unlimited monitors. The only area where UptimeRobot genuinely excels is multi-location monitoring — if your business depends on knowing whether a service is down globally (not just from your server’s perspective), UptimeRobot’s distributed infrastructure has value.
For most self-hosters, run Uptime Kuma on a small VPS separate from your main services. You get enterprise-grade monitoring for the cost of a $3/month Hetzner instance.
Frequently Asked Questions
Is Uptime Kuma actually free?
Yes. Uptime Kuma is open source (MIT license) with no paid tier or feature restrictions. The only cost is the server you run it on — a $3-5/month VPS is sufficient. UptimeRobot’s free tier limits you to 50 monitors at 5-minute intervals.
Can Uptime Kuma monitor from multiple locations?
Not natively. Uptime Kuma monitors from the single server it runs on. If that server is down, monitoring stops. UptimeRobot monitors from multiple global locations, which reduces false positives from network issues. You can partially work around this by running Uptime Kuma instances in multiple regions.
Does UptimeRobot sell my monitoring data?
UptimeRobot’s privacy policy allows data collection for service improvement. They know which URLs you monitor and their uptime history. With Uptime Kuma, all data stays on your server — no third party sees your infrastructure topology.
Can Uptime Kuma send alerts to Slack, Discord, and Teams?
Yes. Uptime Kuma supports 90+ notification types including Slack, Discord, Microsoft Teams, Telegram, email (SMTP), PagerDuty, Pushover, Gotify, ntfy, and many more. UptimeRobot supports fewer integrations on the free plan.
What happens to Uptime Kuma monitoring if my server goes down?
It stops. This is the main limitation of self-hosted monitoring — the monitor can’t detect its own host going down. The standard workaround is running Uptime Kuma on a separate, minimal VPS from your main infrastructure. Alternatively, use a free UptimeRobot account specifically to monitor your Uptime Kuma instance.
How do I migrate from UptimeRobot to Uptime Kuma?
There is no automated migration tool. You need to manually recreate your monitors in Uptime Kuma. The setup is straightforward — each monitor takes 30 seconds to configure. For large monitor lists, Uptime Kuma’s API can be used for batch creation.
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