Skip to main content

A simple cobol IDE

Project description


Travis-CI build status Number of PyPI downloads Latest PyPI version Coverage Status

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


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

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).


I am by no way a cobol expert, I just had to work on a cobol project at school with an awful IDE (NetExpress on a Windows Xp virtual machine). As I was writing pyqode, I thought it would be nice to use it to make a simple cobol editor for GNU/Linux.

I’ve only learnt COBOL 74 and the IDE has been designed with this standard in mind. I don’t plan to work with cobol at the moment nor to learn a new standard but if you found a missing feature, feel free to open a feature request. I’m always looking forward to make OpenCobolIDE better for the experts.

Your advice will be very appreciated!

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for OpenCobolIDE, version 4.2.0
Filename, size File type Python version Upload date Hashes
Filename, size OpenCobolIDE-4.2.0.tar.gz (2.2 MB) File type Source Python version None Upload date Hashes View hashes

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN SignalFx SignalFx Supporter DigiCert DigiCert EV certificate StatusPage StatusPage Status page