26 uptime monitoring tools compared (2026)
25 priced tools in one table, sorted by cost per monitor, plus 1 free self-hosted tool below. Every figure is quoted from the vendor's own pricing page. Open a tool to see the quote, its source and the date it was checked.
Last checked (oldest figure on this page)
Quick answers
- Cheapest per monitor
- $0.03 exit1.dev
- Fastest check
- 15 s exit1.dev, UptimeRobot
- Last verified
Compare head to head
Alternatives and best picks
- Best tools, by rule
- UptimeRobot alternatives
- Pingdom alternatives
- Better Stack alternatives
- StatusCake alternatives
- Free self-hosted tools1
- How we check
Show all (7)Show fewer
Swipe the table sideways for more columns.
| exit1.dev | $3billed yearly | 100 | $0.03 | 15 s | 50 | Per plan |
|---|---|---|---|---|---|---|
| WebGazer | $19 | 200 | $0.10 | 30 s | 50 | Per plan |
| UptimeObserver | €5 | 50 | $0.11 | 30 s | 20 | Per plan |
| ReliableUptime | $12 | 100 | $0.12 | 30 s | 25 | Per plan |
| Watchman Tower | $5.99 | 50 | $0.12 | 30 s | 10 | Per plan |
| Domain Monitor | £7.99billed monthly | 75 | $0.14 | 1 min | 2 | Per plan |
| Oack | $14 | 100 | $0.14 | 30 s | 20 | Per plan |
| DevHelm | $12billed monthly | 75 | $0.16 | 30 s | 50 | Per plan |
| Larm | $19billed yearly | 100 | $0.19 | 30 s | 15 | Per plan |
| UptimeMonk | $13billed yearly | 50 | $0.26 | 30 s | 20 | Per plan |
| Montastic | $5 | 15 | $0.33 | 1 min | 50 | Per plan |
| Site24x7 | $10 | 25 | $0.40 | 30 s | 50 | Per plan |
| Checkly | $24billed yearly | 50 | $0.48 | 30 s | 10 | Per plan |
| Hyperping | $24billed yearly | 50 | $0.48 | 20 s | 20 | Per plan |
| OnlineOrNot | $25 | 35 | $0.71 | 30 s | 3 | Per plan |
| Pulsetic | $9 | 10 | $0.90 | 30 s | 10 | Per plan |
| Uptimia | $9 | 10 | $0.90 | 30 s | 1 | Per plan |
| Host-Tracker | $5 | 5 | $1.00 | 30 s | 2 | Per plan |
| OneUptime | $1billed monthly | 1 | $1.00 | 1 min | — | Per monitor |
| Webalert | €9 | 10 | $1.00 | 1 min | 3 | Per plan |
| UptimeRobot | $13 | 10 | $1.30 | 15 s | 50 | Per plan |
| OpenStatus | $30 | 20 | $1.50 | 30 s | 1 | Per plan |
| Visual Sentinel | $15billed monthly | 10 | $1.50 | 1 min | 0 | Per plan |
| Better Stack | $34 | 10 | — | 30 s | 10 | Per seat |
| Website Monitor AI | $9 | Unlimited (fair use 250) | n/a | 1 min | 3 | Per plan |
No tools match these filters.
— means the figure isn't stated plainly enough to verify, or has no honest per-monitor value. Unknown values sort last. Methodology
Show hosted tools with a free plan
| Tool | Free monitors |
|---|---|
| DevHelm | 50 |
| exit1.dev | 50 |
| Montastic | 50 |
| Site24x7 | 50 |
| UptimeRobot | 50 |
| WebGazer | 50 |
| ReliableUptime | 25 |
| Hyperping | 20 |
| Oack | 20 |
| UptimeMonk | 20 |
| UptimeObserver | 20 |
| Larm | 15 |
| Better Stack | 10 |
| Checkly | 10 |
| Pulsetic | 10 |
| Watchman Tower | 10 |
| OnlineOrNot | 3 |
| Webalert | 3 |
| Website Monitor AI | 3 |
| Domain Monitor | 2 |
| Host-Tracker | 2 |
| OpenStatus | 1 |
| Uptimia | 1 |
Free-plan monitor counts as stated on each vendor's pricing page. Open a tool for its paid plans.
Free self-hosted tools
| Tool | Licence | Min check interval | Alert channels | Checked |
|---|---|---|---|---|
| Uptime KumaSelf-hosted: you run the server | MIT | 20 s | telegram, discord, slack, email |
Self-hosted means you install and run the server yourself. These tools are kept out of the price table and the picks because their cost is your own hosting, which we do not know. Each fact is quoted from the project's own repository.
Quick answers in words
Which uptime monitor is cheapest per monitor?
exit1.dev: $0.03 per monitor per month, the entry plan's price divided by the monitors it includes, in US dollars. Checked 1 Nov 2026.
Which uptime monitor checks fastest?
exit1.dev and UptimeRobot: every 15 s on a paid plan. Checked 1 Nov 2026.
Which uptime monitor has the biggest free tier?
exit1.dev, WebGazer, DevHelm, Montastic, Site24x7 and UptimeRobot: 50 free monitors. Checked 1 Nov 2026.
Which uptime monitors can I run myself?
Uptime Kuma is listed as self-hosted: you run the server, and each fact comes from the project's own repository.
Methodology
Each tool is checked against its own pricing page, and every figure is stored with the quote it came from. Rows start sorted by the entry plan's cost per monitor in US dollars, cheapest first.
$ / monitor is the entry price divided by the monitors that plan includes. It is shown only where pricing is per plan or per monitor: tools priced per seat or by usage have no honest per-monitor figure, so they show a dash and sit at the end. Prices in other currencies are converted to US dollars at European Central Bank reference rates of 2026-11-06.
Fastest check is the quickest interval on any plan with a price. A dash means the page didn't state the figure plainly enough to verify, not that the feature is missing, so a tool with a dash is hidden when a filter needs that figure.