Fortran Source Check

Produces compile-time diagnostics of Fortran code using the Lahey/Fujitsu Fortran 95, Lahey Fortran 90, or Essential Lahey Fortran 90 compilers. Can show warnings, perform a Fortran 90/95 conformance check, warn about use of obsolescent features, force implicit none, and show source listing and cross reference. Runs online, for free.