Comprehensive z/OS debugging and code coverage

IBM® Debug for z/OS® offers debugging and code coverage for z/OS applications written in COBOL, PL/I, C/C++ and Assembler. Debug for z/OS, the traditional z/OS debugging product, is powered by the IBM z/OS Debugger and provides a 3270 user interface and remote debugging through Eclipse. Additional z/OS Debugger capabilities and client options are available in IBM Developer for z/OS, IBM Developer for z/OS Enterprise Edition, and IBM Wazi Developer.


Accelerate everyday developer tasks

Enable developers to examine, monitor, and control the execution of programs in context while testing and debugging.

Optimize testing

Use code coverage combined with code coverage results to optimize your testing resources.

Simplify debugging

Ease comprehension of complex z/OS applications using visual debug, a value-add capability offered through IBM Developer for z/OS Enterprise Edition, IBM Developer for z/OS, or IBM Z Open Development.

IBM Debug for z/OS features

  • Deep and wide z/OS environment support
  • Code coverage to measure testing
  • Valuable data at your fingertips
  • Extensive debugging options
  • Boost your debug experience
  • Supports shift-left testing initiatives