1.MFlowCode / MFCExascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUsgpuexascalecfdfortranhpcmpi+14 moreFortranMIT439 total186 forks+87 starsfrom 352 · score 4.48
2.Reference-LAPACK / lapackLAPACK development repositorylinear-algebralapackblaslapackelinear-equationseigenvalues+4 moreFortranOther license1.9K total519 forks+80 starsfrom 1,838 · score 4.39
3.wavebitscientific / functional-fortranFunctional programming for modern Fortranfunctional-programmingfortranFortranBSD-3-CLAUSE439 total41 forks+6 starsfrom 433 · score 1.95
4.Unidata / netcdf-fortranOfficial GitHub repository for netCDF-Fortran libraries, which depend on the netCDF C library. Install the netCDF C library first. netcdf-fortranunidatanetcdf-librarydatasethacktoberfestFortranOther license271 total108 forks+5 starsfrom 266 · score 1.79
5.szaghi / VTKFortranpure Fortran VTK (XML) APIfortranvtkoopFortranNo license160 total59 forks+5 starsfrom 155 · score 1.79
6.mapmeld / fortran-machineFinally a Fortran MVC web platformfortranFortranBSD-3-CLAUSE811 total44 forks+1 starsfrom 810 · score 0.69
7.vmagnin / gtk-fortranA GTK / Fortran binding, and its documentation (in the Wiki tab).fortranguigtkcross-platformgraphical-user-interfacegraphics+4 moreFortranGPL-3.0289 total46 forks+1 starsfrom 288 · score 0.69
8.davidrpugh / pyeconomicsComputational economics in PythonFortranNo license224 total82 forks+1 starsfrom 223 · score 0.69