A community driven standard library for (modern) Fortran

Find us on…

GitHub The Web Download the Source



This API documentation for the Fortran-lang/stdlib is a work in progress


Use the navigation bar at the top of the screen to browse modules, procedures, source files, etc. The listings near the bottom of the page are incomplete.

Fortran stdlib API Documentation

This is the main API documentation landing page generated by FORD. The documentation for comment markup in source code, running FORD and the FORD project file are all maintained on the FORD wiki.

Goals and Motivation

The Fortran Standard, as published by the ISO (https://wg5-fortran.org/), does not have a Standard Library. The goal of this project is to provide a community driven and agreed upon de facto "standard" library for Fortran, called a Fortran Standard Library (stdlib). We have a rigorous process how stdlib is developed as documented in our Workflow. stdlib is both a specification and a reference implementation. We are cooperating with the Fortran Standards Committee (e.g., the effort started at the J3 committee repository) and the plan is to continue working with the Committee in the future (such as in the step 5. in the Workflow document), so that if the Committee wants to standardize some feature already available in stdlib, it would base it on stdlib's implementation.


The goal of the Fortran Standard Library is to achieve the following general scope:

  • Utilities (containers, strings, files, OS/environment integration, unit testing & assertions, logging, ...)
  • Algorithms (searching and sorting, merging, ...)
  • Mathematics (linear algebra, sparse matrices, special functions, fast Fourier transform, random numbers, statistics, ordinary differential equations, numerical integration, optimization, ...)

Code of Conduct

In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to make participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation. Please read first this Code of Conduct


The stdlib source code and related files and documentation are distributed under the MIT license.

Developer picture

Developer Info

fortran-lang/stdlib contributors