Be the first to know when your website goes down
Open-source uptime monitoring for websites and APIs. Monitor your website every minute and get notified when it goes down.
Open-source uptime monitoring for websites and APIs. Monitor your website every minute and get notified when it goes down.
Real-time monitoring
HTTP, TCP, and cron-job monitoring with minute-by-minute precision. Get instant alerts when things go wrong.
Monitor your servers with a lightweight agent. Track CPU, memory, disk, network, and load averages in real-time. Get alerted before your servers hit critical thresholds.
Install the agent with a single curl command. No configuration needed.
Set custom thresholds for any metric. Get notified when things cross the line.
Audit the code yourself. Lightweight Go binary with minimal footprint. View on GitHub
Instant notifications
Choose from multiple notification channels. Mix and match per monitor for the perfect alert setup.
Detailed alert emails
Channel notifications
Bot messages
Push notifications
Via Bird
Custom integrations
iOS & Android
More coming soon...
Contribute →Go beyond simple uptime checks. Create automated browser tests that simulate real user interactions—clicking, typing, navigating—and verify your application works end-to-end.
Build tests step-by-step with an intuitive interface. No coding required.
Capture screenshots and HTML snapshots on failure for easy debugging.
Run tests on a schedule as part of your monitoring. Same alerts, same dashboard.
Features you expect from a world-class monitoring service, completely free and open-source.