The Fortran Template Library (FTL)

Description:
The Fortran Template Library (FTL) is a general purpose library for Fortran 2003. Its intention is to bring all these nice things we take for granted in modern languages like Python and C++ to the Fortran world: Generic containers, versatile algorithms, easy string manipulation, and more. It is heavily inspired by C++’s standard library, especially the part that is commonly referred to as the Standard Template Library (STL).
Website:
https://github.com/robertrueger/ftl
License:
The Fortran Template Library is published under the GNU Lesser General Public License. This should permit virtually any use, including the use in closed source software according to section 3 (“Object Code Incorporating Material from Library Header Files”) of the GNU Lesser General Public License.