"Primary target audience (e.g., ""Bioinformaticians,"" ""Social Scientists,"" ""Data Engineers, """" Mathematicians, ...)";Software license;Primary programming language of your software;Development state (whatever fits best);Lines of code (rough estimate);Number of active developers;Type of research software (whatever fits best) Engineers working with porous media, mechanics;GPL;C++;Stable (published, released) [matured, many releases, multiple development years];> 100'000;5-10;Large package (various (domain-specific) tasks, multiple modules) Engineers, Thermodynamic Scientists;No license (yet) / internal;Python;Beta (active development without stable release);10'000 < x < 100'000;2-5;Large package (various (domain-specific) tasks, multiple modules) Python for HPC, Data Engineer, Material Scientist;BSD;Python;Stable (published, released) [matured, many releases, multiple development years];2'000 < x < 10'000;1;Library (focused on tooling, providing building blocks / components) Everybody with big data.;Perl Artistic Licence (open source);Perl;Stable (published, released) [matured, many releases, multiple development years];10'000 < x < 100'000;2-5;Small packages (targeted, limited scope, specific tasks) Image analyst, course organisers, bioinformatician;MIT;Python;Stable (published, released) [matured, many releases, multiple development years];> 100'000;2-5;Framework (development environment for research software applications, collection of libraries) Research scientists;MIT;Go;Beta (active development without stable release);10'000 < x < 100'000;1;Framework (development environment for research software applications, collection of libraries) Data Engineers;No license (yet) / internal;Python;Alpha (concept, prototype);2'000 < x < 10'000;1;Script, collection of scripts or notebooks Gardeners working for science and scientists;No license (yet) / internal;PHP;Beta (active development without stable release);10'000 < x < 100'000;1;Large package (various (domain-specific) tasks, multiple modules) Simulation scientists researching soft matter;GPL;C++;Stable (published, released) [matured, many releases, multiple development years];> 100'000;5-10;Large package (various (domain-specific) tasks, multiple modules) engineers, applied mathematicians;BSD;Python;Beta (active development without stable release);10'000 < x < 100'000;2-5;Library (focused on tooling, providing building blocks / components) All people working with data;MIT;TypeScript;Beta (active development without stable release);10'000 < x < 100'000;2-5;Framework (development environment for research software applications, collection of libraries) Aerospace Engineers;No license (yet) / internal;C++;Beta (active development without stable release);10'000 < x < 100'000;2-5;Framework (development environment for research software applications, collection of libraries) computational chemists, theoretical chemists;LGPL;Fortran;Stable (published, released) [few releases / first release];10'000 < x < 100'000;1;Library (focused on tooling, providing building blocks / components) Biomechanics, preCICE users;MIT;C++;Stable (published, released) [few releases / first release];> 100'000;1;Framework (development environment for research software applications, collection of libraries) GNC Engineers;MPL-2.0;C++;Beta (active development without stable release);> 100'000;2-5;Framework (development environment for research software applications, collection of libraries) HPC users interested in performance analysis;MIT;C++;Stable (published, released) [few releases / first release];10'000 < x < 100'000;2-5;Framework (development environment for research software applications, collection of libraries) Astronomers;BSD;Python;Stable (published, released) [matured, many releases, multiple development years];10'000 < x < 100'000;2-5;Large package (various (domain-specific) tasks, multiple modules) Researchers of semiconductor quantum dot tuning;CC BY-NC-SA 4.0;Python;Stable (published, released) [few releases / first release];10'000 < x < 100'000;2-5;Framework (development environment for research software applications, collection of libraries) Astronomers;No license (yet) / internal;Python;Beta (active development without stable release);10'000 < x < 100'000;2-5;Large package (various (domain-specific) tasks, multiple modules) Experimental scientists in physics and engineering;No license (yet) / internal;Python;Beta (active development without stable release);> 100'000;2-5;Framework (development environment for research software applications, collection of libraries) Data, Mechanical and Thermal Engineer;No license (yet) / internal;Python;Stable (published, released) [few releases / first release];2'000 < x < 10'000;1;Large package (various (domain-specific) tasks, multiple modules) Civil Engineers;MIT;Python;Beta (active development without stable release);2'000 < x < 10'000;1;Small packages (targeted, limited scope, specific tasks) The system is general-purpose.;Apache;Go;Stable (published, released) [few releases / first release];> 100'000;2-5;Large package (various (domain-specific) tasks, multiple modules) Research Software Engineers;Different Open Source Licenses of the underlying platforms (Apache, MIT, BSD);Python/Javascript for self developed tools, Java for Dataverse, PHP for eLabFTW;Stable (published, released) [few releases / first release];< 2'000;2-5;Large package (various (domain-specific) tasks, multiple modules) Applied Mathematicians, Engineers;CC BY 4.0 / CC0;OWL;Stable (published, released) [few releases / first release];2'000 < x < 10'000;2-5;Small packages (targeted, limited scope, specific tasks) ML researchers and FPGA hardware engineers; LGPL-3.0 license;Python;Stable (published, released) [few releases / first release];2'000 < x < 10'000;2-5;Small packages (targeted, limited scope, specific tasks) Astronomers, Data Engineers;BSD;Python;Stable (published, released) [few releases / first release];10'000 < x < 100'000;2-5;Large package (various (domain-specific) tasks, multiple modules) EEG & Neuroimaging;MIT;Julia;Stable (published, released) [matured, many releases, multiple development years];10'000 < x < 100'000;2-5;Framework (development environment for research software applications, collection of libraries) Experimental Researchers, Mathematicians;MIT;Python;Beta (active development without stable release);< 2'000;1;Small packages (targeted, limited scope, specific tasks) Software Engineers;Apache;Java;Stable (published, released) [matured, many releases, multiple development years];> 100'000;2-5;Framework (development environment for research software applications, collection of libraries) Mechanical or Civil Engineers;Commercial;C++;Stable (published, released) [few releases / first release];> 100'000;2-5;Large package (various (domain-specific) tasks, multiple modules) Systems Engineers, Mechanical Engineers;Commercial;Java;Stable (published, released) [matured, many releases, multiple development years];> 100'000;5-10;Framework (development environment for research software applications, collection of libraries) Mathematicians, Control Engineers;GPL;MATLAB;Stable (published, released) [few releases / first release];10'000 < x < 100'000;2-5;Library (focused on tooling, providing building blocks / components) (Numerical) Modelers;MIT;Python;Stable (published, released) [matured, many releases, multiple development years];10'000 < x < 100'000;2-5;Large package (various (domain-specific) tasks, multiple modules) Material scientists, Data engineers;LGPL-3.0;C++;Stable (published, released) [matured, many releases, multiple development years];2'000 < x < 10'000;1;Large package (various (domain-specific) tasks, multiple modules) engineers;GPL;Fortran;Stable (published, released) [matured, many releases, multiple development years];10'000 < x < 100'000;5-10;Framework (development environment for research software applications, collection of libraries) Data Engineers;GPL;Fortran;Beta (active development without stable release);10'000 < x < 100'000;2-5;Large package (various (domain-specific) tasks, multiple modules) Civil Engineers, Structural Engineers;No license (yet) / internal;Visual Basic;Stable (published, released) [few releases / first release];10'000 < x < 100'000;1;Large package (various (domain-specific) tasks, multiple modules) scientists;GPL;Python;Stable (published, released) [few releases / first release];2'000 < x < 10'000;2-5;Framework (development environment for research software applications, collection of libraries) Sleep scientists (Neuroscience/Psychology);No license (yet) / internal;Python;Beta (active development without stable release);10'000 < x < 100'000;2-5;Framework (development environment for research software applications, collection of libraries) Neuroscientists;No license (yet) / internal;Python;Alpha (concept, prototype);2'000 < x < 10'000;2-5;Script, collection of scripts or notebooks Engineers and applied mathematicians;GPL;C++;Stable (published, released) [matured, many releases, multiple development years];> 100'000;5-10;Library (focused on tooling, providing building blocks / components)