Best Self-Hosted Alternatives to UptimeRobot
UptimeRobot’s free tier is genuinely useful — a real allowance of monitors, checked from outside your network, with alerts that arrive — and for one personal site it may be all you ever need. People move when they hit the ceiling above it: shorter check intervals, more monitors, SSL and domain-expiry checks, branded status pages and longer log retention all sit on paid plans that scale with how much you watch. The self-hosted monitors below run the same HTTP, TCP, ping and DNS checks on a server you are already paying for, with no monitor count to budget for.
UptimeRobot costs about $84/year and keeps your data on its servers. These researched, open-source alternatives give you the same workflow on hardware you own — here's what each needs to run.
- The straight swap, in one container
- Uptime Kuma — HTTP, TCP, ping and DNS checks with status pages and notifications to nearly anything — embedded storage, nothing else to provision.
- A polished dashboard with PageSpeed on top
- Checkmate — uptime, SSL, port, Docker and game-server checks plus PageSpeed reports and status pages — at the cost of running MongoDB beside it.
- Monitors declared in your repo, not a web form
- Gatus — a single Go binary driven by one YAML file, scoring each check against explicit conditions — persistence is opt-in, so configure it.
- Cron and backup heartbeats, not website probing
- Healthchecks — the passive half — your jobs ping it on success and it alerts when one is late; it never requests your site, so run it alongside a prober.
The alternatives
What you give up by leaving UptimeRobot
The thing you actually give up is vantage point, and it is not a small thing. UptimeRobot checks your site from someone else’s network, from more than one region, so it can tell you the site is unreachable when the problem is your host, your uplink or your DNS. A monitor running on the same box as the service it watches cannot report that the box is down — it is down too, and the alert never fires. The fix is to run the monitor somewhere else: a second cheap VPS at a different provider, or a machine at home watching the server, is the minimum honest arrangement, and it is the part people skip. You also give up maintained notification integrations, a public status page hosted off your own infrastructure, and the comfort that someone else is paged when the monitoring itself breaks. Self-hosting buys unlimited monitors, whatever interval you like, and every result in a database you own — take the trade once you have somewhere independent to run it from.
Head-to-head
Is the URL down, or is the box on fire?
Click to add a monitor, or commit it.
Is my site up? vs. did my job run? — two different failure modes.
Common questions
Is self-hosting actually cheaper than UptimeRobot?
UptimeRobot costs $84/year. A VPS from $4.59/mo covers any of the 4 alternatives below, saving roughly $29/year.
Are these UptimeRobot alternatives really free?
The software is open-source and free to run. Your only cost is the server it runs on — often a few dollars a month, less than most SaaS subscriptions.
How much server do I need to self-host one?
Most of these run comfortably on a small VPS — 1–2 GB of RAM is enough for a single-user or small-team setup. Each app's page lists its minimum RAM.
Will I lose features by leaving UptimeRobot?
It depends on the app. The alternatives below cover the core workflow; polish and integrations vary, so check each one's stack and difficulty before you commit.