Checkly
Synthetic monitoring for APIs and web apps using Playwright checks written as code.
- Verified facts
- 4 of 4
- Alternatives ranked
- 5
- Approved reviews
- 0
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About Checkly
Checkly is a synthetic monitoring service aimed at developers. Instead of clicking together checks in a UI, you write API checks and Playwright browser tests in TypeScript or JavaScript, store them in your repository, and deploy them with the Checkly CLI, so the same tests can run in CI before a release and then on a schedule from global locations in production. It also offers simple uptime monitors for URLs, TCP and heartbeats, traces for failed checks, alerting to the usual channels, and status pages. The monitoring-as-code workflow is its main selling point and fits teams already using Playwright for end-to-end tests. For non-developers, or for anyone who only needs basic pings, it is more than necessary. A free hobby plan covers personal projects, and paid plans are priced per month by check runs, frequency and locations. It is a hosted service.
Best for: Developer teams that want end-to-end and API checks managed as code alongside their app.
Pros and cons
What works
- Monitoring as code with a CLI and Git workflow
- Reuses Playwright tests for production checks
- Free hobby plan
Why people leave
- Requires coding to get the most out of it
- Browser check runs get expensive at high frequency
- Not a full observability suite
Top Checkly alternatives
See all 5- 1
Pingdom66.5UI-driven transaction checks and real user monitoring.
- 2
Datadog62.6Synthetic tests alongside full APM and infrastructure data.
- 3
UptimeRobot59.6Much cheaper if simple uptime pings are enough.
- 4
Hyperping57.2Uptime and browser checks with polished status pages.
- 5
Better Stack55.3Uptime checks bundled with on-call and status pages.
Why people left Checkly
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Reviews
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Checkly: common questions
Is Checkly free?
Checkly has a free plan and paid plans. Free plan: Hobby, 10 uptime monitors (checked on Checkly's own site).
Is Checkly open source?
No, Checkly is not open source.
What platforms does Checkly run on?
Checkly is available for Web.
What are the best alternatives to Checkly?
The highest-ranked Checkly alternatives right now are Pingdom, Datadog and UptimeRobot. See the full ranked list for pricing, platforms and verified facts.