Best uptime monitoring tools (2026)
Each pick below follows one stated rule, applied to figures quoted from the vendors' own pricing pages. When tools tie, all are listed.
Last checked (oldest figure used on this page)
| Rule | Pick | Fact | Checked |
|---|---|---|---|
| Most free monitors | exit1.dev, WebGazer, DevHelm, Montastic, Site24x7, UptimeRobottie | 50 free monitors | |
| Cheapest paid entry plan (USD-normalised) | OneUptime | $1/month | |
| Fastest check on a paid plan | exit1.dev, UptimeRobottie | checks every 15 s | |
| Status page on the entry plan + lowest price | OneUptime | $1/month, status page included | |
| Free self-hosted: fastest check | Uptime Kuma | checks every 20 s; you run the server |
Prices in other currencies are converted to US dollars at European Central Bank reference rates of 2026-11-06. Tools with no verified value for a rule do not compete for it. "Free self-hosted" tools are ranked on their own: you run the server.
All 25 tools
| Tool | Entry / mo | Monitors | $ / monitor | Fastest check | Free tier | Checked |
|---|---|---|---|---|---|---|
| exit1.dev | $3billed yearly | 100 | $0.03 | 15 s | 50 | |
| WebGazer | $19 | 200 | $0.10 | 30 s | 50 | |
| UptimeObserver | €5 | 50 | $0.11 | 30 s | 20 | |
| ReliableUptime | $12 | 100 | $0.12 | 30 s | 25 | |
| Watchman Tower | $5.99 | 50 | $0.12 | 30 s | 10 | |
| Domain Monitor | £7.99billed monthly | 75 | $0.14 | 1 min | 2 | |
| Oack | $14 | 100 | $0.14 | 30 s | 20 | |
| DevHelm | $12billed monthly | 75 | $0.16 | 30 s | 50 | |
| Larm | $19billed yearly | 100 | $0.19 | 30 s | 15 | |
| UptimeMonk | $13billed yearly | 50 | $0.26 | 30 s | 20 | |
| Montastic | $5 | 15 | $0.33 | 1 min | 50 | |
| Site24x7 | $10 | 25 | $0.40 | 30 s | 50 | |
| Checkly | $24billed yearly | 50 | $0.48 | 30 s | 10 | |
| Hyperping | $24billed yearly | 50 | $0.48 | 20 s | 20 | |
| OnlineOrNot | $25 | 35 | $0.71 | 30 s | 3 | |
| Pulsetic | $9 | 10 | $0.90 | 30 s | 10 | |
| Uptimia | $9 | 10 | $0.90 | 30 s | 1 | |
| Host-Tracker | $5 | 5 | $1.00 | 30 s | 2 | |
| OneUptime | $1billed monthly | 1 | $1.00 | 1 min | — | |
| Webalert | €9 | 10 | $1.00 | 1 min | 3 | |
| UptimeRobot | $13 | 10 | $1.30 | 15 s | 50 | |
| OpenStatus | $30 | 20 | $1.50 | 30 s | 1 | |
| Visual Sentinel | $15billed monthly | 10 | $1.50 | 1 min | 0 | |
| Better Stack | $34 | 10 | — | 30 s | 10 | |
| Website Monitor AI | $9 | Unlimited (fair use 250) | n/a | 1 min | 3 |
Also listed: Uptime Kuma (self-hosted).
How we source and check these figures · Back to the full comparison