can i fork it?

Head-to-Head Comparison · Alternative to UptimeRobot · 📟 monitoring

UptimeRobot vs Uptime Kuma

Monitors websites, APIs, and services with real-time alerts, a status page, and support for dozens of notification channels. Self-hosted and Docker-friendly. Here is how Uptime Kuma ($0/mo open source) stacks up against UptimeRobot ($35/mo) across cost, hosting, data privacy, and real-world trade-offs.

⚡ Quick Verdict · 2027 Comparison

Uptime Kuma is a verified MIT-licensed open-source replacement for UptimeRobot. Switching from UptimeRobot ($35/mo) saves $420/yr per solo seat, or $2,100/yr for a 5-person team. Deployment: Runs on Self-host.

The catch: It is excellent for checks from your own server, but has no built-in worldwide probe fleet or polished synthetic transaction recorder.

UptimeRobot vs Uptime Kuma Specifications

facts verified 2026-11-07

DimensionUptimeRobot (Paid)Uptime Kuma (Replacement)
Monthly Price$35 / mo$0 / mo
1-Year Cost (1 seat)$420 / yr$0 / yr (Save $420)
1-Year Cost (5 seats)$2,100 / yr$0 / yr (Save $2,100)
1-Year Cost (10 seats)$4,200 / yr$0 / yr (Save $4,200)
Source & LicenseProprietary SaaSopen source MIT
Where It RunsVendor CloudSelf-host (your server)
PlatformsWeb / Cloud
webself-hosteddocker to self-host
GitHub Stars—★ 93.3k (active nov 2026)

Deep Dive: Switching from UptimeRobot to Uptime Kuma

Trade-offs, installation & data architecture

The Catch vs UptimeRobot

What you trade away

It is excellent for checks from your own server, but has no built-in worldwide probe fleet or polished synthetic transaction recorder.

Installation

How to deploy Uptime Kuma

Docker Compose with a persistent `/app/data` volume, or a manual Node.js plus PM2 install

Day-2 Operations & Setup

What it takes to run

It still needs an always-on host, Docker volume discipline, and outbound notification credentials; network filesystems are explicitly unsupported for the data directory.

Data Ownership

Where your data lives

Monitor configuration, users, status pages, certificates, and history live in the application database under the mounted `/app/data` directory.

Build vs Fork Verdict: NO (use a free alternative, save the tokens)

Why fork Uptime Kuma instead of vibe-coding a UptimeRobot clone?

Instead of paying recurring SaaS fees for UptimeRobot or rebuilding it from scratch, deploy one of the 11 battle-tested open-source alternatives like Uptime Kuma.

UptimeRobot vs Uptime Kuma FAQ

Is Uptime Kuma a good free alternative to UptimeRobot?+

Yes. Uptime Kuma is a verified open-source (MIT) replacement for UptimeRobot. Monitors websites, APIs, and services with real-time alerts, a status page, and support for dozens of notification channels. Self-hosted and Docker-friendly.

What is the catch when switching from UptimeRobot to Uptime Kuma?+

It is excellent for checks from your own server, but has no built-in worldwide probe fleet or polished synthetic transaction recorder.

How much do you save switching from UptimeRobot to Uptime Kuma?+

UptimeRobot costs $35/mo ($420/yr) per seat, whereas Uptime Kuma is $0/mo. Switching saves $420/yr for a solo user, $2,100/yr for a 5-person team, and $4,200/yr for a 10-person team.

How do I install or self-host Uptime Kuma instead of UptimeRobot?+

Install: Docker Compose with a persistent `/app/data` volume, or a manual Node.js plus PM2 install. Setup: It still needs an always-on host, Docker volume discipline, and outbound notification credentials; network filesystems are explicitly unsupported for the data directory.

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