Keep Your Mainframe Data Consistent and Accurate

Intelligent file comparison for validating change and improving application development.


Comparex® (formerly Serena Comparex) is the only intelligent mainframe file comparison tool that compares changes to data, text, and directory files in a single product. Compare files on z/OS, z/VM, and z/VSE platforms via both ISPF and batch interfaces.

Flexible and easy to use for beginners and experts alike

Comparex offers a wide variety of control parameters to meet the needs of all users, from beginners to experts.

Comprehensive file and data support

Comparex is the only software comparison tool that includes text, data, and directory functionality so you can quickly and accurately validate changes and improve application development.

Fast, accurate reports

Comparex finds and isolates differences in text files and highlights them in an easy-to-scan delta report. With over fifty keyword options, you can tailor the comparison criteria to meet your exact reporting requirements.

Generate test data

Improve testing quality by using actual production data. Production data can be filtered to extract a subset of records for testing purposes.


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