Heartbeat Monitoring

Monitor anything using a simple heartbeat

  • checkmark Zero setup. Grab your API key and start sending events.
  • checkmark Flexible assertions for alerts in any situation.

Heartbeat Failed

"New Sales” heartbeat has stopped.

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Join 50,000+ Developers Worldwide

Anything can send a heartbeat

An instant pulse on the health of any software component.

Stay on top of every problem

Be the first to know when incidents happen.

Keep everybody informed

Daily, weekly and monthly reporting for your whole team.

Product Highlights

Monitor hosts

Always know that an internal host or container is running without intrusive uptime checks.

Monitor email campaigns

Add Cronitor as a subscriber to any important mailing list and know instantly if email stops flowing.

Monitor user activity

Send heartbeats on key system and application events and follow trends over time.

Monitor any scraper

Include heartbeats in crawl maps and be alerted if ingestion or scraping activity stops.

Monitor webhooks

Subscribe Cronitor to any webhook for simple passive monitoring of third party services.

Monitor devices

Send heartbeats from internet connected devices of any kind and monitor your entire fleet.

Simple metrics

Enrich heartbeats with simple metrics and track things like loop iterations and records processed.

Instant alerts

Ensure the right person is notified if your heartbeat doesn't arrive at the expected time.

Live dashboards

See all of your heartbeat monitors on a fast, easy to use dashboard with live updates.

Developer friendly

Provision and version control your monitoring using our simple YAML configuration and CLI tools.

Open source

Add monitoring to any codebase in minutes with one of our official, open source SDKs.

More than heartbeats

Cronitor is a complete monitoring platform not just a heartbeat monitoring tool.

Trusted by 1,000+ teams and counting


"Cronitor has increased our Operations staff's efficiency and responsiveness immensely. Their spin on micro-monitoring represents a best-in-class solution to the age old problem of visibility."

Ethan Erchinger Director of Operations

"I was finding too many cases where our cron jobs would silently fail - we sometimes would not find out for days that a job was broken. Cronitor gives our team the confidence and peace of mind that if a job is not running, we'll know fast."

Gary Malouf VP of Technology

"Before we used Cronitor, we had an important data backup job fail silently for over a month. We use Cronitor so that will never happen again!"

Natalie Gordon CEO
Case Study Aloft.ai

Aloft uses Cronitor to monitor realtime flight data and stay in compliance.

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Case Study GreatWaves

GreatWaves uses Cronitor to automate WiFi deployments and rollbacks.

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Reliability at scale


Uptime last 12 months


Events received per day


Website & API checks per day


Jobs monitored per day


Alerts sent per day


Founded in California

Monitoring for Developers