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GnuCOBOL (formerly OpenCOBOL) is a free, modern COBOL compiler. GnuCOBOL implements a substantial part of the COBOL 85, X/Open COBOL and newer ISO COBOL standards (2002, 2014, 2023), as well as many extensions included in other COBOL compilers (IBM COBOL, MicroFocus COBOL, ACUCOBOL-GT and others).
GnuCOBOL translates COBOL into C and internally compiles the translated code using a native C compiler.
Build COBOL programs on various platforms, including GNU/Linux, Unix, Mac OS X, and Microsoft Windows. GnuCOBOL has also been built on HP/UX, z/OS, SPARC, RS6000, AS/400, along with other combinations of machines and operating systems.
Copyright 2001-2024 Free Software Foundation, Inc.
The cobc compiler is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the FSF; either version 3, or (at your option) any later version.
The libcob run time support source tree is licensed under the GNU LGPL.
Features
- a nicely complete implementation of COBOL with nearly seamless C integration
- passing over 9700 of 9748 NIST COBOL 85 test suite tests
- passing over 3700 tests in nearly 1300 internal test groups
- dialect support for COBOL85, X/Open COBOL, COBOL2002, COBOL2014, MicroFocus, IBM, MVS, ACUCOBOL-GT, RM/COBOL, BS2000, GCOS (Bull)
- supports ORGANIZATION INDEXED along with REPORT SECTION, SCREEN SECTION, FUNCTION-ID
- support for JSON GENERATE and XML GENERATE (XML PARSE pending)
- almost full support of the COBOL 2023 Compiler Directing Facility feature set
- EXEC SQL preprocessors available for PostgreSQL, Firebird, ODBC, DB2
- ASCII, EBCDIC, little endian, big endian. A build published for z/OS OMVS/USS
- multiple source level debuggers available (GDB frontends or extensions as well as completely separate projects)
- compiler built with GNU Autotools and GCC, also successfully builds with LLVM clang, VisualStudio or others
- direct access to almost all C libraries, and even more with the C++ base
- multiple screen libraries available including Java (AWT/SWING) and GTK+ based
- code integrating Ada, Guile, Lua, Rexx, Javascript, Python, and others, published
- CGI capable and desktop ready
- compiler and runtime messages translated; English, French, Spanish, Portuguese, Serbian, Swedish, Turkish, Dutch, German, more to come
Project Samples
