The OWASP Code Pulse Project is a tool that provides insight into the real-time code coverage of black box testing activities. It is a cross-platform desktop application that runs on most major platforms.

How it works

Code Pulse does its magic by monitoring the runtime of the target application using an agent-based approach that sits deep in the stack of the virtual machine executing the application’s binaries. Due to the intimate nature of our tracing approach we currently support Java Virtual Machines, but we do have plans to add support for .NET applications. Although Code Pulse will likely also work for desktop application, our current focus is in providing the best experience for web application testing.

Why Code Pulse?

Whereas in the past it’s been very difficult to understand which parts of an application a DAST or manual penetration test covered, Code Pulse automatically detects the coverage information while the tests are being conducted and will even make it possible to understand the overlaps and boundaries of the different tools’ coverage.

Code Pulse presents the coverage information in a visual form to make it easy to understand at-a-glance which parts of an application have been covered, and how much. The real-time coverage feedback makes it easy to adjust testing activity based on the observed coverage. In addition for testing activities relying on multiple techniques (a variety of dynamic analysis tools for instance) it’s fairly easy to split up the recorded activity to understand which code was covered by each tool independently or alternatively to view where the coverage overlaps between multiple tools.


OWASP Code Pulse project is free to use. It is licensed under the Apache 2.0 License.

References: CodePulse official

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