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A simple cobol IDE

Project description


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OpenCobolIDE is a simple and lightweight cobol IDE based on the GnuCobol compiler.

The software is written in Python using PyQt5 (or PyQt4) and pyQode


  • native (fast) cobol syntax highlighter
  • cobol code completion
  • cobol code folding
  • navigable tree view of division, sections, paragraphs etc (fully synchronised with the code folding panel)
  • smart auto indentation
  • tool for computing PIC fields offsets
  • compile as a program (.exe) or as a subprogram (.so/.dll)
  • run the program from the editor or from a configurable external terminal ( necessary if you are using the SCREEN section).
  • dark color schemes and theme
  • cross platform: works on GNU/Linux, Windows and Mac OSX
  • dbpre integration on Linux


OpenCobolIDE is released under the GPL version 3



Install pyqt5, open-cobol and pip using your package manager, then run the following commands:

sudo pip3 install OpenCobolIDE --upgrade

If you are using Archlinux, you can install OpenCobolIDE and all its dependencies from the AUR:

Note that if you have both PyQt5 and PyQt4 on your system, the IDE will use PyQt5 by default. To force the use of PyQt4, you should set the QT_API environment variable to pyqt4.


There is a windows installer available here:


There is a dmg image available here:

Before running the app, you first have to install the GnuCobol compiler, e.g. using homebrew:

brew install open-cobol

If you installed the compiler in a non-standard path and it is not recognized by the IDE, you can specify the path to the compiler in the preferences dialog under the Build & Run section (make sure to only specify the directory where the compiler can be found, not the full path).

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Files for OpenCobolIDE, version 4.3.0
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