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Checkly

freemium From $0/mo · Founded 2018 · cloud

Synthetic monitoring with Playwright browser tests — developer-first, code-as-config.

Free tier: 10K API checks/mo, 1500 browser checks/mo

What it does well

  • Natively runs Playwright and Puppeteer scripts for complex browser-based user journey tests.
  • Provides a CLI and Terraform provider for managing checks as version-controlled code.
  • Free tier includes 10,000 API checks and 1,500 browser checks per month.

Where it falls short

  • Exclusively a synthetic monitoring tool; lacks integrated RUM, logging, or APM features.
  • The code-first approach may present a steeper learning curve for non-developer users.
  • Does not offer a self-hosted deployment option; it is a cloud-only service.
Tags: uptimesyntheticapi-monitoringbrowser-testsfree-tier

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Synthetic monitor with Selenium-based browser checks + transaction monitoring.

Grafana Cloud's synthetic monitor — free tier integrated with full observability suite.

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