Open Source Windows Mainframe Software

The RecordEditor is a Data File editor for Flat Files (delimited and fixed field position). It supports Unix / PC / Legacy (e.g. Mainframe) file formats, both Text and binary files. The Editor uses a Record-Layout description to format the files. This is ideal for Fixed width (Text or Binary) files, Cobol Data Files, Mainframe files and complicated Csv files. Cobol Copybooks can be used to format Cobol Data files. As well as an editor, The following utilities are supplied * Formatted Compare * File Copy and reformat Utility * FileWizard this is use to work out the format of a File. It can generally find both Text and binary / packed deicimal fields in a file For Simple Csv you should look at its sister project reCsvEditor. Note: The core Editor code is also used in the "Protocol buffers editor" and "Avro Editor"

Hercules is an open source software implementation of the mainframe System/370 and ESA/390 architectures, in addition to the new 64-bit z/Architecture. Hercules runs under Linux, Windows, Solaris, FreeBSD, and Mac OS X. Hercules was created by Roger Bowler and is maintained by Jay Maynard. Jan Jaeger designed and implemented many of the advanced features of Hercules, including dynamic reconfiguration, integrated console, interpretive execution and z/Architecture support. A dedicated crew of programmers is constantly at work implementing new features and fixing bugs.

CB2XML (CopyBook to XML) is a COBOL CopyBook to XML converter written in Java and based on the SableCC parser generator. This project includes utilities to convert an XML instance file into its COBOL copybook equivalent string buffer and vice versa. Source is now available in GitHub: https://github.com/bmTas/cb2xml

ASP Watcher is a high performance (smokin') MS Internet Information Server Monitoring package. It is small, scaleable, and works pretty good.

FreeSP is an infrastructure for programming platform-independend online signal processing applications. Ports to specific platforms (like DSPs and microcontrollers) are made by simply exchanging the freeSP System-module.

This project is based on the sourceforge project tn5250j. The intention of this tn5250jEngine project was to capsulate a slim core modul interpreting the Telnet 5250 stream. This core module provides a 5250-ScreenGrid Interface for any GUI application.

cobol2j reads or writes COBOL or RPG data files imported from mainframes, AS/400 or Baby/36 environment. Packed decimal, zoned or packed date fields decoding included. EBCDIC conversion. ETL ISAM data to any other platform. PC Cobol ( ASCII ) supported.

FlexTest - Flexible Test is a general test executive platform.

Dimmer for KDE4 with nvclock backend

It can help you typing less code to build a PIC program.

zpm(c) is a Java client cooperating with database tables created by zpmd (z/VM Performance Monitor Daemon) software. It presents system usage and actual events.

The Cobos Project is an Open Source initiative from Metrixware, dedicated to Mainframe COBOL CICS, DB2, IMS developments within the Eclipse Platform.