Fortran Tools
(C) indicates a commercial product
- Automatic Differentiation
- Automatic Documentation
- Build Tools
- Command Line Parsing
- Compilers
- Debugging
- Emacs Plugins
- Fixed to Free Source Form Conversion
- Graphical User Interfaces
- Indentation and Formatting
- Interoperability
- Parallel Programming
- Plotting
- Preprocessors
- Profiling
- Refactoring
- Static Analysis
- Text Editors, Integrated Development Environments, and Plugins
- Translation from Fortran
- Translation to Fortran
- Unclassified
- Unit Testing
Automatic Differentiation
adjac: automatic differentiation for generating sparse Jacobians, using Fortran 95 and operator overloading, by Pauli Virtanen
autodiff: automatic differentiation for up to 4th derivatives, by Simon Geard
Auto-Diff: implementation in Modern Fortran of backward mode automatic differentiation, by zoziha.
Dual Number Automatic Differentiation (DNAD): update of code from Yu, W. and Blair, M.: "DNAD, a Simple Tool for Automatic Differentiation of Fortran Codes Using Dual Numbers," Computer Physics Communications, vol. 184, 2013, pp. 1446-1452, by oddlehod. Related project: Fortran_DNAD
fazang: library for reverse-mode automatic differentiation, inspired by Stan/Math library, by Yi Zhang
OpenAD: tool for automatic differentiation (AD) of numerical computer programs
Tapenade: automatic differentiation engine developed at Inria. It can be run online or be downloaded and installed locally as a set of Java classes (JAR archive).
Transformation of Algorithms in Fortran (TAF): source-to-source translator for Fortran 77-95 code, i.e. TAF accepts Fortran 77-95 code as input, applies a semantic transformation, and generates Fortran 77-95 code. TAF supports several semantic transformations. The most important one is Automatic Differentiation (AD), i.e. generation of code for evaluation of the first-order derivative (Jacobian matrix). (C)
Automatic Documentation
Doxygen: generates an on-line documentation browser (in HTML) and/or an off-line reference manual (in LaTeX) from a set of documented source files. There is also support for generating output in RTF (MS-Word), PostScript, hyperlinked PDF, compressed HTML, DocBook and Unix man pages.
f90tohtml: Perl script to convert fortran source files into a hyperlinked web site
ford: Automatically generates FORtran Documentation from comments within the code, from Fortran-FOSS-Programmers
ProTeX: Perl script that can strip information from a standard Fortran document header and save that to a LaTeX file, by Arlindo Da Silva et al.
Build Tools
easy: steps to setup a GitHub repository with fpm, and GitHub actions including ford(1) documentation and unit tests, by urbanjost
FCM: modern Fortran build system + wrappers to Subversion for scientific software development, from metomi
FoBiS.py, Fortran Building System for poor people: automatic parsing of files for dependency-hierarchy creation in case of use and include statements, and automatic building of all programs found into the root directory parsed or only a specific selected target, by szaghi et al.
fortdepend: python script to generate dependencies for Fortran projects, by ZedThree
fortrandep: Python tool to determine Makefile dependencies for a Fortran project, by Ryan Orvedahl
Fortran_makedeps: small Python script to scan Fortran sources and generate makefile-appropriate dependencies, by James Biddle
fortranMakeUtils: Python scripts for generating dependency trees and makefiles, by Denis Eiras
Fortran Package Manager (fpm): package manager and build system for Fortran, from fortran-lang. Documentation is here
Fortran Package Manager for Visual Studio: adds options and menu entries for building, running and testing your Fortran project using the Fortran Package Manager (fpm), by everythingfunctional
fpm: Fortran Package Manager (fpm) is a package manager and build system for Fortran, from fortran-lang
fpm-search: lists available packages in the fpm-registry from the command line, by urbanjost and Sebastian Ehlert. This allows for quickly locating fpm(1) packages and generating the associated dependency lines to insert into fpm(1) package manifest files (fpm.toml) that wish to use them.
jams_makefile: provides a portable, versatile way of compiling Fortran, C, C++, and mixed projects, by mcuntz
makedepf90: generates make dependencies for Fortran code, by Erik Edelman
Makefile-maker: automatic Fortran makefile maker, by Garl4nd. The program first scans all Fortran files for imports of other source files and creates a directed dependency graph, where each vertex represents the file and an arrow from A to B correspond to the File A depending on B.
makemake90: Python script that generates Makefiles for modular Fortran programs, by Jan Berges. It recursively searches the working directory for .f90 files and determines their dependencies.
meson: next-generation build system
MinGW package for the Fortran package manager: provides package build instructions for the Fortran package manager (fpm) compatible with the MSYS2 toolchain. This project provides prebuilt MinGW packages at the release page.
mkhelper: collection of utilities to be used with GNU Autoconf and GNU Make for building Fortran projects, by skosukhin
mkmf: tool written in perl5 that will construct a makefile from distributed source, from NOAA-GFDL. A single executable program is the typical result.
pyfpm: provides a pydantic model of the fpm package manifest format used in the Fortran package manager, by Sebastian Ehlert
run-fortran: sorts Fortran files based on modules definitions and usages, by lycantropos
verbose-goggles: Generates Fortran project templates, by Goddard Guryon. The create_project.sh script takes a project name (and optionally a project directory name) as inputs, creates the project folder, the build and docs folders within it, and saves template files for CMake and Doxygen.
xmake: lightweight cross-platform build utility based on Lua. It uses xmake.lua to maintain project builds. The two Fortran compilers supported are gfortran and ifort.
Command Line Parsing
argv-fortran: better get_command_argument for Fortran that returns the argument in an allocatable character string, by Jacob Williams
cmdff: makes nicer command lines for Fortran codes, by Brad Richardson
command_args: automatically handles the command-line arguments that are passed to the program, by Arjen Markus
f90getopt: getopt()- and getopt_long()-like functionality (similar to the C-functions) for Fortran 90, by Hani Andreas Ibrahim, based on code by Mark Gates
fArgParse: command line argument parsing for Fortran, part of the Goddard Fortran Ecosystem
FLAP: library designed to simplify the (repetitive) construction of complicated CLI in Fortran 2003, by Stefano Zaghi. FLAP has been inspired by the python module argparse and tries to mimic it.
FTN_Getopt: supplies a method for handling command arguments in a manner similar to the getopt facility in C, by Reinhold Bader
M_CLI: cracks the command line when given a NAMELIST and a prototype string that looks very much like an invocation of the program, by urbanjost and Laurence Kedward. Using the NAMELIST group has the benefit that there is no requirement to convert the strings to their required types or to duplicate the type declarations.
M_CLI2: cracks the command line when given a prototype string that looks very much like an invocation of the program, by urbanjost et al. A call to get_args(3f) or one of its variants is then made for each parameter name to set the variables appropriately in the program.
M_kracken95: Fortran 95 version of the kracken(3f) procedure (and related routines) for command line parsing, by urbanjost
optionsf90: module for defining and parsing command-line options and input parameters for Fortran programs, by Christopher N. Gilbreth. Its design is inspired by Python's optparse module.
paramcard: command-line parameter input made simple, by Takahiro Ueda
Compilers
Absoft: designed to build code in the most efficient way possible, the Pro Fortran compiler utilizes advanced technology. This includes load balancing, AVX and OpenMP 3.1 support, AMDAL HPC scientific and engineering math library, Parallel versions of Lapack and BLAS libraries, Fast Data Visualization, and much more. (C)
AMD Optimizing C/C++/Fortran Compiler (AOCC): high performance, production quality code generation tool. The AOCC environment provides various options to developers while building and optimizing C, C++, and Fortran applications targeting 32-bit and 64-bit Linux® platforms.
Arm Fortran Compiler: tailored for server, HPC, and scientific codes, with support for Fortran and OpenMP. The compiler is built on the open source Flang front-end, and the LLVM‑based optimization and code generation back-end. (C)
f18-llvm-project: fork of llvm/llvm-project for f18. In sync with f18-mlir and f18.
flang: flang (also known as "Classic Flang") is an out-of-tree Fortran compiler targeting LLVM. It is an open-sourced version of pgfortran, a commercial Fortran compiler from PGI/NVIDIA
fortran-ios: script that acts like a Fortran compiler that uses Flang to build sources for iOS arm64, by Emma Cold
Fortran kernel for Jupyter with Coarray support: from sourceryinstitute
Full-Stack-Fortran: toolchain to compile Fortran to Webassembly, and a few projects using it, by Christoph Honal et al.
gfortran: GNU Fortran project, developing a free Fortran 95/2003/2008 compiler for GCC, the GNU Compiler Collection. The gfortran development effort uses an open development environment in order to attract a larger team of developers and to ensure that gfortran can work on multiple architectures and diverse environments. Gfortran installation on various platforms is discussed at fortran-lang. For Windows there is Quickstart Fortran.
gfortran-for-macOS: gfortran for macOS Intel, by fxcoudert.
g95: stable, production Fortran 95 compiler available for multiple cpu architectures and operating systems. Parts of the F2003 and F2008 standards have been implemented
HPE Cray Programming Environment: fully integrated software suite with compilers, tools, and libraries designed to improve programmer productivity, application scalability, and performance. Besides support for multiple programming languages, programming models, compilers, I/O libraries, and scientific libraries, the suite offers a variety of supported tools for areas including debugging, performance analysis, workload management, and environment setup. (C)
IBM Fortran: XL Fortran for AIX®: Build optimized and tuned Fortran applications on IBM AIX.
XL Fortran for Linux: Optimize your HPC and cognitive Fortran applications for Linux on IBM Power® Systems, including the POWER9™ processors.
VS Fortran: Develop efficient applications for IBM Z® and z/VM® with IBM VS FORTRAN. (C)
Intel Fortran: built on a long history of generating optimized code that supports industry standards while taking advantage of built-in technology for Intel® Xeon® Scalable processors and Intel® Core™ processors. Staying aligned with Intel’s evolving and diverse architectures, the compiler now supports GPUs.
Lahey Fortran Professional v7.9 Windows: combines the 32/64-bit LGF Rainier compiler with the classic Lahey/Fujitsu LF95 compiler. LGF Rainier has full Fortran 95/90/77 compliance with extensive support for the Fortran 2003 and 2008 standards. (C)
Lahey/GNU Fortran - Rainier Edition Windows 32 & 64-bit: full Fortran 95/90/77 compliance with extensive support for the Fortran 2003 and 2008 standards; targets 32 and 64-bit Windows. Includes the automatic-parallelizing GFortran compiler, Visual Studio 2015 Shell (compatible with VS2019 & VS2017), Lahey's Exclusive Visual Studio Fortran support, Winteracter WiSK Graphics package, and more. (C)
lfortran: modern open-source (BSD licensed) interactive Fortran compiler built on top of LLVM. It can execute user's code interactively to allow exploratory work (much like Python, MATLAB or Julia) as well as compile to binaries with the goal to run user's code on modern architectures such as multi-core CPUs and GPUs.
Mercurium: C/C++/Fortran source-to-source compilation infrastructure aimed at fast prototyping developed by the Programming Models group at the Barcelona Supercomputing Center. Mercurium is used, together with the Nanos++ Runtime Library, to implement the OmpSs programming model. Both tools provide also an implementation of OpenMP 3.1.
NAG: robust and highly tested Fortran compiler, valued for its checking capabilities and detailed error reporting. Available on Linux, Microsoft Windows and Mac OS X, including Apple Silicon Macs. (C)
NEC: Fortran compiler conforms to the Fortran-2003 standard (ISO/IEC 1539-1:2004) and supports many features from Fortran-2008 (ISO/IEC 1539-1:2010). NEC has more than 30 years’ experience in compiler technology for high-end vector machines, and these newly developed compilers will be based on this experience and support all the optimization strategies that NEC compilers are known for. (C)
NVIDIA HPC Software Development Kit: NVIDIA HPC SDK C, C++, and Fortran compilers support GPU acceleration of HPC modeling and simulation applications with standard C++ and Fortran, OpenACC® directives, and CUDA®. GPU-accelerated math libraries maximize performance on common HPC algorithms, and optimized communications libraries enable standards-based multi-GPU and scalable systems programming.
ompi: open source Message Passing Interface (MPI) implementation that is developed and maintained by a consortium of academic, research, and industry partners
Oracle Developer Studio Fortran compiler, f95: provides the following features and extensions: Optimized automatic and explicit loop parallelization for multiprocessor systems, VAX/VMS Fortran extensions, OpenMP parallelization directives, and global, peephole, and potential parallelization optimizations produce high performance applications. (C)
ROSE: compiler infrastructure to build source-to-source program transformation and analysis tools for large-scale C (C89 and C98), C++ (C++98 and C++11), UPC, Fortran (77/95/2003), OpenMP, Java, Python and PHP applications
Silverfrost Fortran FTN95: full Fortran 95 standards compliant compiler, capable of producing fast executables for Win32 and for Microsoft .NET. FTN95 ships with the world's best runtime checking and a great range of supporting software. There is a free personal edition. (C)
VSI Fortran for OpenVMS: supports the FORTRAN 66, FORTRAN 77, Fortran 90, and Fortran 95 standards
xcc-project: C/C++/Fortran compiler collection written in Java, by JianpingZeng
Debugging
Fortran Stacktrace: generates stack traces by providing a Fortran wrapper around the C++ library backward-cpp. It also integrates with the Fortran error-handling library in order to generate errors that includes a stacktrace.
ups: source level C, C++ and Fortran debugger that runs under X11, by Mark Russell. Currently supported systems are FreeBSD and GNU/Linux on Intel x86 and Solaris on SPARC.
Emacs Plugins
align-f90: alignment support for Fortran 90 in Emacs, by jannisteunissen
Doom Emacs: enables a complete, modern development environment for Fortran
Emacs: extensible, customizable, free text editor. Download here.
f90-iface: Emacs-based browser for Fortran 90 generic interfaces, by wence- and monnier
f90-namelist-mode: extension to Emacs f90-mode to handle Fortran namelists, by ZedThree
fortpy: Python Emacs Intellisense and Unit Testing Support for Fortran, by rosenbrockc and wsmorgan
fortpy-el: Lisp package for emacs that integrates with fortpy to provide context-specific auto-completion and intellisense for Fortran 2003, including object oriented constructs, by rosenbrockc
fortran-index-args: numbers subroutine arguments and shows indexes before each argument in the list, by ffevotte. Such indexes are just displayed on screen, but do not modify the underlying buffer.
Fortran layer: basic Spacemacs configuration layer for the Fortran language, by Marco Scopesi
Fortran-tags: Fortran source code indexing tool with the focus of finding the definition of any variable or procedure, by raullaasner et al. It is able to correctly locate all global and local variables and is expected to work with any Fortran 2008 conforming code with some exceptions as mentioned below.
fprettify.el: interface to fprettify, auto-formatter for modern Fortran code, by osada-yum
Fixed to Free Source Form Conversion
ccx_fff: Python script converting old Fortran 77 code to the one with free form, from calculix. Shifts comments and continuation marks for better code folding.
EZUP: tool to convert Fortran fixed source form to free source form to be compatible with ELF90, by August Miller
f2f: Perl script which does much of the tedious work of converting FORTRAN 77 source code into modern Fortran, by Colby Lemon
f77tof90: Python script that reads in a Fortran 77 (.f or .F) fixed form file and converts it to a free form Fortran 90 file (.f90 or .F90), by mattdturner. It was successfully used to convert a legacy codebase (over 400 .f/.F files and millions of lines of code) from Fortran 77 to Fortran 90.
FORTRAN77_to_Fortran90: convert old fixed source FORTRAN 77 code to free form Fortran 90 code, by Koushikphy
fortran-legacy-tools: tools to deal with Fortran code: fixed to free source form converter, upper- to lowercase converter, formatter for variable declarations, by ylikx
freestyle: script to convert fixed form Fortran files (written in Fortran 77) and header files to free form, by bast
GConvert: program to convert fixed form Fortran into code that works as fixed or free form, by GeorgeTsikas.
to_f90: Alan Miller's tool for converting Fortran 77 code to free-form Fortran 90 code, from jbdv-no
Graphical User Interfaces
EGGX/ProCALL: X11 graphics library for C, C++ and FORTRAN created to achieve simplicity. One can easily create 2D graphics on the X Window System by using BASIC-style drawing functions.
GINO: high-end feature-rich API for creating complex 2D and 3D graphics and GUI applications. The GINO products are available for Fortran under Windows and Linux. (C)
gtk-fortran: cross-platform library to build Graphical User Interfaces (GUI), by Vincent Magnin et al. Gtk-fortran is a partial GTK / Fortran binding written in Fortran, thanks to the ISO_C_BINDING module for interoperability between C and Fortran.
Winteracter: GUI toolset for the Fortran programming language. It consists of various visual development tools and a substantial subroutine library. Several Fortran compilers are supported. (C)
Indentation and Formatting
ajt-fortran.vim: port of Ajit J. Thakkar's Vim indent script
findent: indent and convert Fortran sources, by wvermin and MFTabriz
FortranIndent: tools to indent Fortran 90 sources, from Kairzhan
fprettify: auto-formatter for modern Fortran code that imposes strict whitespace formatting, written in Python, by pseewald
IndentPatternFortran: general indentation patterns for Fortran, by JHenneberg
Interoperability
Cython fortran-file: fast and easy reader for record-based binary format, as written by Fortran, by Corentin Cadiou
F2x: versatile, template-based Fortran wrapper written in Python. Compared to the popular tool f2py it comes with two important differences: a full Fortran parser based on the work by the OpenFortranParser, and a very flexible code generation backend that uses Jinja2 templates.
f90nml: Python module and command line tool, by Marshall Ward et al., that provides a simple interface for the reading, writing, and modifying Fortran namelist files. A namelist file is parsed and converted into an Namelist object, which behaves like a standard Python dict
f90wrap: Fortran 90 to Python interface generator with derived type support, by jameskermode et al.
fimport: Python import hook for importing Fortran module, by Pauli Virtanen
FortModGen: generate consistent Fortran and C/C++ data structures, and a consistent C/C++ API from a toml configuration file for global object interop, from neut-devel
Fortran90Namelists.jl: Julia implementation of Python f90nml for working with Fortran namelists
FortranFiles.jl: Julia package for reading/writing Fortran unformatted (i.e. binary) files, by Frank Otto et al.
Fortran filesystem: file system path manipulation utilities for standard Fortran, from scivision. Inspired by Python pathlib and C++17 filesystem.
FORTRAN format interpreter for Python (py-fortranformat): Generates text from a Python list of variables or will read a line of text into Python variables according to the FORTRAN format statement passed, by Brendan Arnold and michaelackermannaiub
FortranNamelist: Java reading class for Fortran namelists, by Jonathan Schilling
Fortran Namelist Reader: Python and Matlab readers for Fortran namelist => dict / struct, from scivision
fortran-namelist: Ruby library to manipulate Fortran namelists, by Saji Hameed
fortran-unix: Fortran 2008 ISO C binding interfaces to selected POSIX and SysV types, functions, and routines on 64-bit Unix-like operating systems, by interkosmos
fpydemo: demonstration of packaging a command line tool written in Python and Fortran, by Saikat Banerjee
ftest: demonstrates how to call R functions from Fortran, by Balasubramanian Narasimhan. A fully worked example is provided in the form of a vignette.
fython: Fython is Fortran with a Python syntax, by Nicolas Essis-Breton. Fython code can be used in Python with a standard import statement.
GenericF2PY: demonstrates how to handle Fortran binaries in Python modules, by Charlie Taylor
gfort2py: library to allow calling Fortran code compiled with gfortran from Python 2.7 or Python 3, by Robert Farmer and Ondřej Čertík
h2m-Autofortran-Tool: allow easy calls to C routines from Fortran programs, by Garnet Liu and Michelle Anderson. Given a header file in standard C, h2m will produce a Fortran module providing function interfaces which maintain interoperability with C. Features for which there are no Fortran equivalents will not be translated and warnings will be written to standard error.
libfde: Fortran Development Extensions (library), by Zorkator
M_process: read and write lines to or from a process from Fortran via a C wrapper, by urbanjost
M_system: module that allows Fortran to call commonly available C routines that perform basic system operations like creating and deleting files and directories, changing and querying file permits, getting basic ID and process information, ... and other POSIX system requests, by urbanjost
namelist_python: Fortran namelist parser in Python, by Leif Denby et al.
nml: R package for parsing Fortran namelist files, by Jem Stachelek et al.
RFortranRcpp: communication between Fortran, Rcpp and R, by Konrad1991. Passing R or Fortran user code to Fortran code from a package.
shroud: creates a Fortran or Python interface to a C or C++ library, from LANL. It can also create a C API for a C++ library.
Simplified Wrapper and Interface Generator (SWIG): creates Fortran wrapper code from C++ headers
SUtools: Tools for autogenerating Fortran registration code for R, by Balasubramanian Narasimhan
vecLibFort: lightweight but flexible "shim" designed to rectify the incompatibilities between the Accelerate/vecLib BLAS and LAPACK libraries shipped with Mac OS X and FORTRAN code compiled with modern compilers such as GNU Fortran, by Michael C. Grant and Robert Huston
Parallel Programming
allgebra: docker images for developing C++ and Fortran HPC programs, by termoshtt and t-hishinuma
hipfort: Fortran Interface For GPU Kernel Libraries
gpufort: source-to-source translation tool for CUDA Fortran and Fortran+X in the spirit of hipify
mpich: high-performance and widely portable implementation of the MPI-3.1 standard from the Argonne National Laboratory
Omni Compiler: compiler for code including XcalableMP, XcalableACC, and OpenACC directives. The base languages supported by Omni Compiler are C language (C99) and Fortran 2008 in XcalableMP, and C language (C99) in XcalableACC and OpenACC.
OpenCoarrays: supports Fortran 2018 compilers by providing a parallel application binary interface (ABI) that abstracts away the underlying parallel programming model, which can be the Message Passing Interface (MPI) or OpenSHMEM, from sourceryinstitute
stng: compiler for Fortran stencils using verified lifting, by Alvin Cheung et al. It takes input codes in Fortran and automatically rewrites them to Halide, a new high-performance domain-specific language that leverages GPUs for computation.
System FOR Automated Parallelization (SAPFOR): software development suite that is focused on cost reduction of manual program parallelization, by kaniandr and zoocide. It was primarily designed to perform a source-to-source transformation of a sequential program for execution on heterogeneous clusters.
Plotting
accis: plotting and graphics library by Ian Hutchinson. Related project: PLOTTRACES
asgl: produces a PostScript or Encapsulated PostScript file that can contain scatter plots, line plots, histograms, 2D density plots, and/or bond-and-stick plots of molecules, by Andrej Šali
CHART_COUPE: Fortran plotting package based on NCL libraries, tuned for geophysical numerical model output, from meom-group
DISLIN: high-level plotting library for displaying data as curves, polar plots, bar graphs, pie charts, 3D-color plots, surfaces, contours and maps, available for several C, C++, Fortran 77 and Fortran 90/95 compilers on the operating systems Unix, Linux, FreeBSD, Windows, Mac OSX and MS-DOS. The DISLIN distributions can be used freely without any restrictions. Access to the source code and a preferred support is available via a contract.
Dislin_x_y_plot: generates plots from within a Fortran program nearly as easily as with the provided Dislin "quickplots", by Andi Zuend. However, unlike the quickplots, this module offers a lot more options for controlling the plot page, axis system and various curve properties. It also makes adding multiple x--y data sets (curves) to a single plot easy.
fplot: provides a convenient interface for plotting with gnuplot, by jchristopherson
fortplot: plot module for Fortran so that plotting can be done in real time (on the fly), by Anjishnu Sarkar
giza: 2D scientific plotting library built on cairo, by Daniel Price et al. Provides uniform output to pdf, ps, png and X-Windows. Written in C with no dependencies (other than cairo) as a direct replacement for PGPLOT.
gnufor2: Fortran 90 module by Alexey Kuznetsov with subroutines for plotting data, including 2D, 3D plots, surfaces, polar coordinates, and histograms. It is a modification of the GNUFOR interface written by John Burkardt.
gnuplotfortran: Fortran 95 gnuplot interface for some Unix-like OS'es, by Madhusudan Singh. This provides some routines that enables direct access of a child gnuplot session from a Fortran 95 program. fortranposix must be installed.
graffer: interactive tool for generating plots of data and/or functions, by James Tappin. The original graffer was an IDL program. This version provides most of the same functionality in a Fortran program using gtk-fortran and plplot for the GUI and plotting respectively. To display functions gdl (gnudatalanguage) or IDL is required.
M_calcomp: old graphics library used in conjunction with M_draw for work with old codes, by urbanjost. The CALCOMP library is a simple set of FORTRAN callable graphic routines that allows users to quickly construct plots.
M_slices: basic slice plot module based on M_draw(3f) and built using fpm, by urbanjost. This version requires X11 Windows.
MUESLI: numerical and graphical library, written mainly in Fortran 95, by Édouard Canot. Fortran Muesli Library contains all necessary materials to numerically work with a dynamic array (dynamic in size, type and structure), called mfArray. Fortran Graphics Library contains graphics routines which use the mfArray objects.
ogpf: Object-Based Interface to gnuplot from Fortran, by kookma
PG2PLplot: facilitate the transition from Fortran code linked against PGPlot to linking it against PLplot, which is open source and maintained. Currently, many PGPlot routines are included, but the code is by no means exhaustive.
PGPLOT PGPLOT Graphics Subroutine Library is a Fortran- or C-callable, device-independent graphics package for making simple scientific graphs, by Tim Pearson. It is intended for making graphical images of publication quality with minimum effort on the part of the user. For most applications, the program can be device-independent, and the output can be directed to the appropriate device at run time.
plotterf90: graphics subroutine library producing Postscript, by Masao Kodama
Plotutil: uses gnuplot to draw plots from data files, by Roninkoi. Has array handling utils and code for sorting and line fitting.
PLplot: can be used to create standard x-y plots, semi-log plots, log-log plots, contour plots, 3D surface plots, mesh plots, bar charts and pie charts. Multiple graphs (of the same or different sizes) may be placed on a single page, and multiple pages are allowed for those device formats that support them. C library with bindings to Fortran 2003 and many other languages.
PlPlotLib: wrapper for PlPlot inspired by the interface of matplotlib, by zoziha. It is intended to fill the need for rapid feedback while developing numerical simulations, and does not replace more sophisticated packages such as matplotlib or even direct use of PlPlot.
pltFor: Fortran-Python interface library by Damien Minenna to plot figures directly in Fortran, by calling Matplotlib
PSPLOT: library of Fortran-callable subroutines which can be combined in a calling program to produce PostScript plot files. Intended for users interested in generating technical drawings or graphics for technical journals in PostScript format.
PyFerret: Ferret is an interactive computer visualization and analysis environment designed to meet the needs of oceanographers and meteorologists analyzing large and complex gridded data sets, from NOAA/PMEL. It runs on recent Unix and Mac systems, using X windows for display. PyFerret, introduced in 2012, is a Python module wrapping Ferret.
pyplot-fortran: generate plots from Fortran using Python's matplotlib.pyplot, by Jacob Williams
SPLASH: visualisation tool for Smoothed Particle Hydrodynamics (SPH) simulations in one, two and three dimensions, developed mainly for astrophysics, by Daniel Price et al. It uses a command-line menu but data can be manipulated interactively in the plotting window. SPLASH can also be used as a standalone plotting tool for any kind of tabulated or image data from ascii, csv or .fits files.
Preprocessors
efpp: preprocessor for eFortran, a dialect of modern Fortran presented in S. Hosoyamada and A. Kageyama, A Dialect of Modern Fortran for Simulations in Methods and Applications for Modeling and Simulation of Complex Systems, Communications in Computer and Information Science, vol 946, pages 439-448, 2018 (Proceedings of AsiaSim2018).
exceptions: experiment with exceptions in Fortran via a simple preprocessing step, by Arjen Markus
f90 do nest: Python script to generated deeply nested do loops in Fortran, by Thomas Hayward-Schneider. It will generate "classical" nested do/enddo in f90code.F90 and also a do concurrent version in f90code_conc.F90.
FMacro: template preprocessor for Fortran, by Harris Snyder. Aims to address Fortran's lack of support for generic programming with a simple preprocessor, modeled after some of the language committee's early ideas for a template language feature, to be included in a future Fortran standard.
fortiel: Fortran preprocessor and metaprogramming engine, by Jhuighuy
fypp: Python-powered preprocessor, by aradi. It can be used for any programming languages but its primary aim is to offer a Fortran preprocessor, which helps to extend Fortran with condititional compiling and template metaprogramming capabilities
prep: Fortran pre-processor written in Fortran, by urbanjost
Profiling
Caliper: library to integrate performance profiling capabilities into applications, from LANL. To use Caliper, developers mark code regions of interest using Caliper's annotation API. Applications can then enable performance profiling at runtime with Caliper's configuration API.
HPCToolkit: integrated suite of tools for measurement and analysis of program performance on computers ranging from multicore desktop systems to the nation's largest supercomputers. By using statistical sampling of timers and hardware performance counters, HPCToolkit collects accurate measurements of a program's work, resource consumption, and inefficiency and attributes them to the full calling context in which they occur.
Reference-Counter: extensible, object-oriented reference-counting utility for Fortran, described in Rouson, Morris & Xia (2012) This Isn't Your Parents' Fortran: Managing C++ Objects with Modern Fortran. Computing in Science & Engineering 14(2), 46-54.
timemory: performance measurement and analyis package with modular and reusable components which can be used to adapt to any existing C/C++ performance measurement and analysis API and is arbitrarily extendable by users within their application, from NERSC
Refactoring
Fortran Language Program Remodeling system (FLPR): C++17 library for manipulating Fortran source code, from LANL. This package contains a "best effort" Fortran 2018 input parser for fixed and free form inputs, data structures for manipulating source code at the program unit, statement, and physical line levels, and sample applications that illustrate usage and provide some ideas as to how you could use the library.
Glasgow Fortran Source-to-Source Compiler (RefactorF4Acc): automatic refactoring tool to make Fortran code acceleration-ready, by wimvanderbauwhede and rouson. RefactorF4Acc's main purpose is to make legacy FORTRAN 77 acceleration-ready. In the process it converts FORTRAN 77 code into Fortran 95. In addition, RefactorF4Acc has a backend to translate modules to C/OpenCL.
Fortran Kernel Generator: KGen: Python tool that extracts partial codes out of a large Fortran application and converts them into a standalone/verifiable/executable kernel, by Youngsung Kim and John Dennis
fortrantools: tools to enable the use old or proprietary Fortran code with gfortran. They are intended to be used together with the gcc extensions in CodethinkLab's gcc branch.
Refactoring Of QUEstionable FORTran (Roquefort): creates module to replace existing common blocks, removes unused variable imported from modules, transforms implicit variable declaration to explicit variable declaration, and moves variables to a new module, from NLESC-JCER
Static Analysis
camfort: refactoring and verification tool for scientific Fortran programs. It currently supports Fortran 66, 77, and 90 with various legacy extensions.
Cleanscape FortranLint: static source code analysis tool that reduces your organizational exposure to risks from latent software problems by automatically identifying problems at their source -- in the Fortran code prior to compiling or executing programs. (C)
CompareFortranNamelists: Python class to compare Fortran namelists, by Kai Keller
Code Comprehension Assistance for Evidence-Based performance Tuning (CCA/EBT): extracts the syntactic/semantic structures from Fortran code and then provides outline views of the loop-nests and the call trees decorated with source code metrics.
flint: Little linter for Fortran, with static analysis and formatting, by JonasToth
flint: aspires to be a Fortran parser, delinter, and analyser, by marshallward. For now, it is a Fortran tokenizer, with tools for parsing and automated documentation.
flint: source-code static analyzer and quality checker with multiple programming languages support. For fortran, it intends to follow the coding conventions mentioned in OMS Documentation Wiki page.
Forcheck: oldest and most comprehensive Fortran analysis tool on the market. It performs a static analysis of a Fortran program or separate Fortran program units. (C)
fortree: Python app that creates call trees of your Fortran code, by Esther Taillifet. Fortree makes call trees, definition trees and dependencies trees.
ForUML: reverse engineering tool that generates Unified Modeling Language (UML) class diagrams from object-oriented Fortran programs, by azizn and Damian Rouson. ForUML understands and diagrams Fortran class relationships, including inheritance and aggregation. ForUML also detects and depicts operator overloading, constructors, and parallel data structures (coarrays).
fortlint: Fortran static source code analysis for more secured and bug free applications
fortrancallgraph: static source code analysis for Fortran, tracking variables in a routine's callgraph, from fortesg
fortran-callgraph: Tool to create call graphs from JULES source code
FORTRAN_callgraph_browser: browsing tool that reads in a directory of Fortran code and displays it as an interactive graph, by Dan Ellis and Richard Rigby
Fortran code quality: simple Python script that parses Fortran files and gives feedback on a few metrics relating to code quality, by Eirik F. Kjønstad and Sander Roet
Fortran linter: simple fortran syntax checker, including automatic fixing of the code, from cphyc
fortran-linter: linter for Fortran 77 using Parsec-like parsing combinators in Python, by uchchwhash
fortran_python_tools: analyzes the variable usage of fixed source form Fortran 77 code, by jinyuntang
FortranTree: parses Fortran source code and creates a call tree graph with Python, by imaliyov. The code relies on pygraphviz and fparser.
fortran-vars: static analysis library for Fortran code. It is built on top of the open source project fortran-src which provides lexing, parsing and basic analyses of Fortran code. Fortran-vars focuses on supporting the Fortran 77 standard and extensions. It provides a Fortran memory model with a symbol table and storage table, constant expressions evaluation, constant propagation analysis.
fpt - Tools for Fortran Engineering - Error Checking, Measurement and Assessment, Structural Engineering, Software Migration, Run-time Testing, and more. (C)
fsource: Fortran static analysis tool written in pure Python, by mwallerb
ftnchek: static analyzer for Fortran 77 programs. It is designed to detect certain errors in a Fortran program that a compiler usually does not.
fxtran: parses Fortran source code and decorates it with XML tags. The result is an XML file which can be searched with XPath, and modified with the DOM API.
i-CodeCNES: static code analysis tool to help developers write code compliant with CNES coding rules for Fortran 77, Fortran 90 and Shell, from cnescatlab
K-scope: source code analysis tool with graphical user interface that visualizes program structures for Fortran 90 and FORTRAN 77 source code. This tool simply visualizes call tree from AST based on compiler's static analysis.
plusFORT - multi-purpose suite of tools for analyzing and improving Fortran programs. (C)
Simple Lint GitHub Action (simple_lint): runs simple lint-like actions on files in a git repository, from NOAA-GFDL. The current list of lint actions are to check for trailing whitespace, check Fortran files for use of tab characters, and check Fortran files for lines longer then a specified length.
Text Editors, Integrated Development Environments, and Plugins
atom-build-fpm: plugin for running the Fortran Package Manager (fpm) from within Atom
Code::Blocks: free C/C++ and Fortran IDE built to meet the most demanding needs of its users. It is designed to be very extensible and fully configurable.
linter-gfortran: linting Fortran code in Atom with gfortran
FortranCodeNav: Visual Studio Extension which helps navigate modern Fortran code, by Tiemen Schreuder. It contains several parsers to generate a code structure representation which is used to provide jump-to and search functionality with limited context-awareness.
Fortran IntelliJ Idea plugin: Fortran language plugin for IntelliJ Idea, by satamas
Fortran Language Server: A Fortran implementation of the Language Server Protocol using Python (2.7+ or 3.0+), by hansec. Editor extensions using this language server to provide autocomplete and other IDE-like functionality are available for Atom, Visual Studio Code, Visual Studio, (Neo)vim, and Emacs.
Fortran Language Server (fortls): based on @hansec's original Language Server implementation but the two projects have since diverged. fortls (this project) is now developed independently by gnikit of the upstream hansec/fortran-language-server project and contains numerous bug fixes and new features the original fortran-language-server does not.
fortran.tmbundle: TextMate support for Fortran. TextMate is a graphical text editor for macOS 10.12 or later.
fossil: Fortran IDE designed in Python by someone eager to learn Fortran but in an easy and accessible way, by nrwade0
Guide_VSCode-fortran: comprehensive guide on how to set up a complete development environment for Fortran in Visual Studio Code, by Julian Henneberg
Modern-Fortran: language syntax for highlighting of Fortran code in Sublime Text, by eirik-kjonstad. It highlights modern Fortran (Fortran 90 and newer) and incorporates features introduced in Fortran 2003, 2008, and 2018.
neovim: Vim-fork focused on extensibility and usability
Photran: IDE and refactoring tool for Fortran based on Eclipse and the CDT. Photran supports Fortran 77-2008. It includes 39 refactoring, including Rename, Extract Procedure, and loop transformations
qtcreator-fortran: support for Fortran projects and source files in Qt Creator as well as syntax-highlighting, by Jonas Lindemann
Simply Fortran: modern Fortran development environment for Microsoft Windows, Apple macOS, and GNU/Linux systems. It includes the Aplot library for creating two-dimensional graphs and plots quickly from Fortran routines. Free 30-day trial. (C)
SublimeLinterFortran: linter plugin for SublimeLinter provides an interface to gfortran, by Ramón L. Panadés-Barrueta and Tejas Shetty. It will be used with files that have free format Fortran syntax.
vim: improved version of the UNIX editor Vi. Many new features have been added: multi-level undo, syntax highlighting, command line history, on-line help, spell checking, filename completion, block operations, script language, etc. Download here.
vimf90: Fortran ide for vim
vim-findent: vim plugin for Findent, which indents Fortran sources, by cradesto
vim-FORTRAN-UPPER: vim plugin for automatic capitalization in Fortran source, by William C. Dawn
vim-tmux-IDE: minimal vim IDE by luco00. Sets a connection with external terminal via tmux to interactively execute code (Python, R, Julia, Fortran, Go are supported).
Visual Studio Code (vscode): combines the simplicity of a code editor with what developers need for their core edit-build-debug cycle, from Microsoft. It provides comprehensive code editing, navigation, and understanding support along with lightweight debugging, a rich extensibility model, and lightweight integration with existing tools.
vs-fortran-ls-client: Language Server Protocol client that connects to Chris Hansen's Fortran Language Server to add IntelliSense for Fortran to Visual Studio 2017
vscode-fortran-support: extension that provides support for the Fortran programming language. It includes syntax highlighting, debugging, code snippets and a linting based on gfortran.
vscode-modern-fortran-formatter: formatter extension for modern Fortran using fprettify, by Yuki Hanayama
Yapakit: free Fortran source code editor for Windows, Linux or Mac. It can automatically an html documentation of a project and generate Fortran 90 dependencies for inclusion in a makefile, taking module dependencies into account
Translation from Fortran
f2c: convert Fortran 77 to C
f2cpp: Converts Fortran 77 code to C++, by victorliu. Unlike f2c, the output of f2cpp.pl may or may not compile, however, only a small number of hand-tuned changes are typically needed. The resulting code is much cleaner than f2c's output, and much closer to the original intent of the original Fortran code.
f2j: translate Fortran 77 to Java, especially for BLAS, LAPACK and ARPACK
f2matlab: converts Fortran 90 code to Matlab m-files, by benbarrowes. Accordingly, only basic data types and constructions are recommended.
f4go: Transpiling Fortran code to golang code, by Konstantin8105
F77Ccompiler: compiler from Fortran 77 to C, by Danil
fortran2julia: Python script to translate Fortran 90 to Julia, by algorithmx
fortran2julia: parses to JSON by fortran-parser, after which parse.jl converts to JSON to Julia, by Tom Rottier. Requires dotnet runtime to be installed.
FortranTranspiler.jl: partial transpiler from Fortran to Julia, by Denis Telnov
loki: tool to explore the possible use of source-to-source translation for ECMWF's Integrated Forecasting System (IFS) and associated Fortran software packages. Loki is based on compiler technology (visitor patterns and ASTs) and aims to provide an abstract, language-agnostic representation of a kernel, as well as a programmable (Pythonic) interface that allows developers to experiment with different kernel implementations and optimizations.
Translation to Fortran
c2f: partial C to Fortran translator by David Frank
matlab2fmex: small translator which aims to convert numerical Matlab m-files to Fortran90 mex files, by Ben Barrowes. matlab2fmex first translates an m-file to a Fortran90 mex source file then compiles that Fortran90 file using Matlab's mex and the local compiler.
matlab2fortran: performs some simple conversions from Matlab code to Fortran, by ebranlard
Mc2For: MATLAB to Fortran compiler, from Sable
pyccel: Pyccel can be viewed as a Python-to-Fortran/C converter or a compiler for a Domain Specific Language with Python syntax
Unclassified
automates: Automated Model Assembly from Text, Equations, and Software, from ml4ai
bench-cli: cross-platform command line tool to benchmark commands and other executables/scripts in command lines written in Fortran, by Lateralus138. Very precise and fast.
Fortran Debug Utilities: collection of some utilities useful for debugging code, by Pål Levold
Fortran-gdb-pp: gdb pretty printer for Fortran dynamic types, by Peter Hill
fortran-git: Fortran 2008 ISO C binding interfaces to libgit2, by interkosmos
Fortran-RefCount: simple reference counting for Fortran
fortran-sigwatch: library of routines to provide simple signal watching for Fortran programs, originally by Norman Gray, modified by Michael Hirsch. This allows a minimal level of control of a running program from outside it, for example to tell it to checkpoint itself on receipt of a signal.
Fortran-Standard-Search: shell script searching a string in the titles of the subsection of the Fortran standard, and opening the pages in a PDF viewer, by Vincent Magnin. It is based on pdfgrep, cut and okular.
FORTRAN Testing Framework (FTFramework): collection of Python and Bash scripts to enable easy testing of Fortran compilers using BATS, by agforero
irep: tool for filling C/C++ or Fortran data structures from Lua input tables, from LLNL
nmltab: Python 3 module and command-line tool to tabulate, semantically diff, superset and consistently format Fortran namelist files, with output to text, markdown, csv, latex and namelists, by Andrew Kiss and Aidan Heerdegen. Requires Python 3.4 or later, and f90nml (amongst other packages).
nml-to-f90: generates Fortran source code for handling parameter I/O from a namelist, by perrette
progRESS+repORT (progrep}: utility to show live progress, status and stats of a running simulation or any compute job that executes a given number of iterations, by SomajitDey. Progrep can report for both serial (single-core) and parallel (multi-core/multi-node - e.g. OpenMP/MPI) jobs.
Unit Testing
fortran-testanything: test library supporting the Test Anything Protocol (TAP) inspired by Perl's Test::More module, by dennisdjensen
FortranTestGenerator: automatically generates unit tests for subroutines of existing Fortran applications based on an approach called Capture & Replay, from fortesg
fortran-unit-test: unit test library in Fortran to encourage scientific programmer to write tests, by dongli
Fortran_UnitTest: unit test library based on OOP, by zhenkunl. It is strongly inspired by Zofu, and its output format is derived from fortran-unit-test.
Fortran Unit Test Library: pure Fortran library using Object-Oriented Programming (OOP), by zhenkunl. It is strongly inspired by Zofu, and its output format is derived from fortran-unit-test.
FRUIT: Fortran unit test framework in Ruby, by mortele and michaelkonecny
fytest: lightweight unit testing framework for Fortran, by aradi. Thanks to its header-only design, it can be easily bundled with any Fortran project without creating extra dependencies.
pFUnit: unit testing framework enabling JUnit-like testing of serial and MPI-parallel software written in Fortran, from Goddard-Fortran-Ecosystem. Limited support for OpenMP is also provided in the form of managing exceptions in a thread-safe manner.
tap: minimal producer implementation of the "Test Anything Protocol" (TAP) in Fortran 90, from gzahl
test-drive: lightweight, procedural unit testing framework based on nothing but standard Fortran, by awvwgk. Integration with meson, cmake and Fortran package manager (fpm) is available.
Vegetables: testing framework written using functional programming principles, by Brad Richardson. As many of its procedures as possible are marked with the pure keyword while still allowing the framework to test impure code.