Side by side
OnlineOrNot vs Testable Synthetic Monitoring
Both stand on synthetic monitoring. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APILinuxMac+1
Visit OnlineOrNot 
Free plan APISelf-hostedWeb
Testable offers scheduled checks ranging from basic network monitors to scripted workflows, with diagnostics for failed runs. The free plan has five-minute intervals for its basic checks; paid plans start at $23.17/mo (annual).
Visit Testable Synthetic MonitoringThe facts
| OnlineOrNot | Testable Synthetic Monitoring | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | No | Not published |
| Runs on | API, Linux, Mac, Web | API, Self-hosted, Web |
| Lowest paid plan | Pro: $15 a month | Solo: $23.17 a month |
| Plans published | 3 | 5 |
| Maker | OnlineOrNot | Not published |
| Website | onlineornot.com | testable.io |
| On synthetic monitoring | #8 of 46 | #16 of 46 |
OnlineOrNot: what it does well
Testable Synthetic Monitoring: what it does well
- Free plan includes 50 monitors and one status page.
- Supports browser, API, and scripted-flow checks.
- Failed checks can include screenshots, traces, and logs.
- Paid plans support one-minute monitoring intervals.
What to know first
- Free Ping, Port, and HTTP checks run every five minutes.
- Advanced workflows have a 100-run monthly free allowance.
- Self-hosted monitoring sources are limited to eligible paid plans.
Alternatives to OnlineOrNot Alternatives to Testable Synthetic Monitoring The whole list