👉 NEW: Automatic performance & error tracing on every browser check. Learn more

Delightful Active Monitoring
for Developers

Checkly is the API & E2E monitoring platform for the modern stack: programmable, flexible and loving JavaScript.

checkly monitoring dashboard
Trusted by engineering teams at
trusted by companies for api and synthetic monitoring

synthetic monitoring

Monitor crucial flows fast

Monitor and validate your crucial site transactions. Automatically collect error traces, screenshots and performance metrics with every browser check you run.

Coding browser click-flows used to be hard. Not anymore. Use modern open source frameworks like Playwright to automate your flows. Run your checks in 20 locations worldwide.

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checkly browser screenshots webshop add to cart

api monitoring

Monitor all your APIs easily

Make sure your APIs always respond quickly and with the correct payload. Our intuitive editor lets you configure powerful HTTP requests.

Kickstart your checks with our Swagger and cURL importer. Add Node.js-based setup/teardown scripts and fine-grained assertions for in-depth API monitoring.

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checkly assertions edit checkly assertions

e2e testing

Monitoring 💘 E2E testing

Monitoring production is great. But catching bugs before they hit production is better. Run your API monitors and synthetic monitoring scripts against your staging environment on each git push.

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  • Setup

    Create your API checks and script your browser click flows using the UI or API.

  • Integrate

    Install our GitHub App in your repo. We'll start listening to each deploy event.

  • E2E test on each push

    On each push, get detailed E2E test results, logs and screenshots right in your PR.

checkly e2e screenshot
Works out-of-the-box with Vercel logoVercel and Heroku logoHeroku

Alerting

checkly alerting options

Alerting when and how you want it

Keep your team up to date with a generous helping of SMS messages and unlimited email, Pagerduty, Opsgenie, Slack and webhook notifications. Control exactly how, when and how often you get alerted. "Double checking" is enabled by default to never get false positives.

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checkly alerting settings

Stats & metrics

Insights without limits

Doing a root cause without complete and accurate data is insane. But too much detail can also be distracting. That's why next to calculating aggregates to keep an overview, Checkly stores each and every raw result for you and your team to dive into.

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checkly check results

workflow

Integrates with your workflow

Checkly integrates with the open source & developer tools you use on a daily basis.

terraform logo
Terraform

Configure and scale your monitoring with Terraform's powerful CLI workflow.

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javascript logo
Javascript

Extend your monitoring with Javascript for custom authentication and test logic.

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github logo
GitHub

Run your checks as tests on each git push and get results in your PR comments.

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prometheus logo
Prometheus

Export uptime, status and response time data to your Prometheus cluster.

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andreas wixler
Andreas Wixler
CTO & Co-Founder of finna auto
quote icon

Checkly is super easy to use and fits perfectly in our toolchain.

finn.auto uses Checkly to ensure booking processes work all the time, everywhere!

Read case study

"We've been using Checkly for the past months. It's been phenomenal. Super easy to get setup, works flawlessly and intuitively. The team are super receptive & quick to help"

Jake Cooper
Jake Cooper
Founder / Engineer
railway.app

"Checkly is a fabulous developer tool! The flexible features and developer-friendly API made the integration super easy. Bonus: their support is super friendly and knowledgeable!"

customer portrait
Connor Hicks
Lead Developer
1password.com

"Checkly is incredible: It combines Pingdom, Ghost Inspector and Assertible all in the same app, and the insights are much more detailed."

Leo Lamprecht
Leo Lamprecht
SVP Product
vercel.com

All features at a glance

API monitoring

Flexible API monitoring with custom body, headers, query parameters and unlimited assertions.

synthetic monitoring

Scripted browser clicks flow with Chrome using Playwright or Puppeteer Node.js frameworks. Take up to ten screenshots per check.

CI/CD integration

Trigger your checks on GitHub push & PR's or use a simple cURL command from your CI/CD pipeline.

Public dashboards

Display a public dashboard on your site or in-office mounted TV, hosted on your company domain.

Global coverage

Get global latency metrics by running your checks from up to twenty data center locations around the world.

Alerting channels

Generous SMS bundles & unlimited recipients / endpoints for Pagerduty, Opsgenie, email, webhooks and Slack alerting integrations.

Threshold alerting

Control what triggers alerts and set reminders. We always run double checks to combat false positives.

Teams & users

Add team members to your account to collaborate. Comes with full role based access control.

SSL expiry alerting

We'll alert you when your SSL certificate is about to expire up to 30 days in advance till D-day.

We already ranAPI checks andbrowser checks!