Software repositories

- Netlib
- Alan Miller
- H. D. Knoble‘s Collection of Fortran Algorithms and Techniques
- UC Berkeley Econometrics Laboratory
- John Burkardt
- StatLib statistical library
- TOMS
- GAMS–NIST Guide to Available Math Software
- David Duffy - statistics and genetics codes, interfaces to curses and zlib, embeddable Lisp interpreter as a module.
- Biostatistics software from the University of Texas
- Dan Nagle - portability project, COCO, conversion functions, etc.
- Orderpack Michel Olagnon’s routines for ranking and sorting.
- SOFA library - Patrick Wallace’s library for fundamental astronomy including astrometric and calendrical calculations.
- NSWC Mathematics Subroutine Library
- Lawrie Schonfelder’s routines for variable length character strings and variable precision arithmetic.
- F2003-RAPS Fortran 2003 code examples.
- Mathtools Fortran section
- Crystallography Source Code Museum
- szaghi Fortran Repos some free open source Fortran codes.