The Compiler Explorer platform recently announced that it would be possible to add libraries for the different languages available therein.
They have delivered and thanks to @gnikit who opened a PR on their side it is now possible to access stdlib. Currently it is only available for gfortran (trunk and 13.2):
Chose Fortran as the language, then “Add new > Execution Only”, click on Libraries
And now pick stdlib from the available libs:
You can now test algorithms from stdlib, for instance by simply choosing from the examples
Happy coding