: Compiler versions and download URLs change over time. Always verify license terms for free compilers, especially for commercial use.
: Large download (≈ 2 GB) and heavier installation, but excellent F77 support. fortran 77 compiler for windows 10 64-bit free download
Hello, Fortran 77 on Windows 10 64-bit!
Modern compilers are generally backward-compatible with Fortran 77 standards and are the most reliable way to compile code on 64-bit Windows. Watcom C/C++ : Compiler versions and download URLs change over time