The Fastest Java Debugger

Get LIVE code data instantly!

No restarts, redeployment or added code

Getting started is a snap!

Configure your SDK

# Download our java agent
curl -L "" -o rook.jar
# Export your token as an environment variable
export ROOKOUT_TOKEN=[Your Rookout Token]

# Set your JVM to use the rook as a java agent
export JAVA_TOOL_OPTIONS="-javaagent:(pwd)/rook.jar"

Slash debugging time by 80%

  • Set ‘non-breaking’ breakpoints to get data without stopping or breaking
  • Increase productivity and avoid context switching
  • Effortlessly reproduce and solve bugs in dev, staging, and production
  • Feel at home with our IDE-like online platform
  • Choose your JVM flavor: Java, Scala, Kotlin, Groovy, ColdFusion



Get instant visibility into your stack trace

  • Get detailed, real-time, non-simulated data
  • All the data you need – when you need it
  • Full dump, metrics, variables, and more
  • Top-notch security: with SOC2 certification, PII redaction, and a data-on-prem feature

We Play with Everyone

Rookout accelerates our dev cycle by helping us release features and fix bugs much more quickly. We now have a clear understanding of how the code behaves in our microservice-oriented architecture.

Nadav Sharir, VP Engineering