Checkly
Monitoring as Code platform for API and browser checks powered by Playwright
About Checkly
Checkly is an application reliability platform that unifies synthetic monitoring, testing, and observability into a developer-friendly workflow. It pioneered the Monitoring as Code approach, allowing teams to define and manage checks directly from their IDE. The platform offers browser checks powered by Playwright, API monitoring, uptime monitoring from global locations, and built-in status pages for transparent incident communication. Checkly supports private locations, visual regression testing, and integrates seamlessly into CI/CD pipelines.
Pros & Cons
Pros
- Monitoring as Code approach integrates naturally into dev workflows
- Powered by Playwright — same framework developers already use for testing
- Generous free tier for small projects
- Built-in status pages eliminate need for separate tools
- Excellent CI/CD integration for shift-left testing
Cons
- Pricing can escalate quickly with high check frequency
- Steeper learning curve for non-developer teams
- Visual regression testing only available on Team plan
- Limited RUM (Real User Monitoring) capabilities
Key Features
Browser checks powered by Playwright
API monitoring with multi-step assertions
Uptime monitoring from 20+ global locations
Monitoring as Code — define checks in your IDE
Built-in status pages for incident communication
CI/CD integration for testing in deployment pipelines
Visual regression testing
Private locations for internal monitoring
Alerting via Slack, PagerDuty, Opsgenie, and more
OpenTelemetry-based traces for debugging
Pricing
- 10 uptime monitors
- 1K browser check runs
- 10K API check runs
- 25 uptime monitors
- 5K browser runs
- 50K API runs
- Status pages
- Unlimited monitors
- Private locations
- Visual regression
- Team collaboration
- SSO/SAML
- Dedicated support
- Custom SLAs
- Advanced security
Featured In
Tools That Fix the 'We Ship Too Many Bugs to Production' Problem (2026)
Best for teams that want their production monitors and CI/CD tests to be the same code — Checkly's Monitoring as Code approach catches bugs both before and after deployment.
7 Best QA & Testing Tools for Continuous Delivery Pipelines (2026)
Best for engineering teams that want testing and monitoring expressed as code and shipped through CI.
Monitoring Tools With One-Line Setup: From Install to First Alert in Minutes (2026)
Best for developer teams who want monitoring-as-code and already use Playwright for testing — uniquely fast to adopt for that audience.
Best Website Monitoring Tools for Product Managers (2026)
Best for product managers at SaaS companies where critical post-login user journeys must keep working through every deploy.
Best Monitoring Tools With Highest Uptime Check Frequency (2026)
Best for engineering teams who need to monitor real user journeys, not just whether a homepage returns 200.