Ralph Linkletter is regular contribute to the GnuCOBOL forums. He has
built a version of GnuCOBOL for Windows 7 and higher, with an
interactive debugger and an ISPF-like editor.
https://www.wincobol.com/
WinCOBOL is the website of WINIDE.
WINIDE is an edit, compile, and test facility primarily for use by
programmers familiar with IBM mainframe COBOL.
Included with WINIDE are the following:
zOS IBM mainframe look and feel
An IDE to compile, an editor, a break point dialog
An ISPF like editor - ZSPF.EXE
GnuCOBOL a free open source COBOL compiler and RTS
An animator for debugging WINIDE applications
Installation video tutorial
Videos depicting the use of WINIDE
Limitations:
Procedure division copybooks are not implemented
EBCDIC support is now available as a beta release
Free format COBOL syntax is not supported
--
https://www.arnoldtrembley.com/