cat
The premium Open Source alternative to New Relic
🎯 Best for:Large-scale enterprises requiring distributed application performance monitoring.
What is cat?
Replaces proprietary APM solutions like New Relic for large-scale distributed systems. Provides real-time transaction tracking and health status across Java, C++, and Go environments.
Tech Stack
JavaMonitoring & Logs
Why cat?
- • High throughput processing
- • Multi-language client support
- • Deep middleware integration
Limitations
- • Complex deployment architecture
- • Heavy Java dependency
- • Steep configuration curve
3/4/2026
Last Update
5,434
Forks
215
Issues
Apache-2.0
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to cat instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on New Relic)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%