Fortran Wiki

Free and Open Source Compilers

  • GFortran - The Fortran compiler from the GNU project. In 2023, GFortran nearly implements all of the Fortran 2008 standard and partially Fortran 2018. It is available on many platforms.
  • LFortran - Modern interactive LLVM-based Fortran compiler
  • Flang - Flang is a Fortran compiler targeting LLVM. Supports Fortran 2003 and parts of Fortran 2008 available for Linux [x86_64 and OpenPower]
  • LLVM Dragonegg - A GCC plugin that replaces GCC’s optimizers and code generators with those from the LLVM project.
  • Experimental:
    • OpenUH - In development. A compiler for Fortran 2008 Coarrays and OpenACC.
  • F77 Only:
  • Discontinued

Freemium proprietary Compilers:

  • PGI Community Edition - Free edition of the parallelizing compiler from The Portland Group. Supports OpenACC and parts of Fortran 2008. Available for Linux, macOS, and Windows.
  • Oracle Developer Studio - Compiler suite from Oracle. Supports Fortran 2003 and is available for Solaris and Linux.

Commercial Compilers

Live Fortran