Subset Co-Array Fortran into OpenMP Fortran
- Describes an awk tool that translates between the two version of Fortran and gives a link for downloads.
- http://www.co-array.org/caf2omp.htm

F2J
- Translates Fortran 77 to Java.
- http://icl.cs.utk.edu/f2j/

Crescent Bay Software -- VAST/77to90
- Fortran 77 to Fortran 90 translator that allows you to upgrade your existing Fortran 77 programs to a higher level.
- http://www.crescentbaysoftware.com/vast_77to90.html

To_F90
- Takes Fortran 77 code in standard format and makes some changes to produce free-format Fortran 90 code.
- http://users.bigpond.net.au/amiller/to_f90.f90

MathCode F90
- Generates optimized Fortran 90 Code from Mathematica programs.
- http://www.wolfram.com/products/applications/mathcodef90/

Promula Fortran to C Translator
- Translates Fortran source code to correct and clean C source code.
- http://promula.com/

Matlab2fmex
- Matlab2fmex.m is a small translator which aims to convert numerical Matlab m-files to Fortran 90 mex files. Matlab2fmex first translates an m-file to a Fortran90 mex source file and then compiles that Fortran 90 file using Matlab's mex and the local compi
- https://sourceforge.net/projects/matlab2fmex/

F2perl
- Perl script which assists in translating Fortran 77 programs to Perl.
- http://f2perl.sourceforge.net/

F2matlab
- Fortran 90 to Matlab code converter written in Matlab. It accepts Fortran 90 subroutines or functions, determines intent for variables, converts intrinsic function calls, and outputs a Matlab *.m file.
- http://sourceforge.net/projects/f2matlab/

fh2h
- Fortran to C header translator.
- http://www.ps.uci.edu/~tomba/fh2h/

f2c
- Fortran to C translator.
- http://ftp.netlib.org/f2c/

Convert.f90
- Program by Michael Metcalf that converts Fortran 77 source form to free format Fortran 90 source.
- http://www.slac.stanford.edu/comp/fortran/convert.f90

ANS-compatible FORmula TRANslator
- By Julian Noble, written in Forth.
- http://galileo.phys.virginia.edu/classes/551.jvn.fall01/ftran202.htm