The Best 21 Factor Alternatives

  • C (programming language) icon

    C (programming language)

    C is a general-purpose computer programming language. C is one of the most widely used programming languages of all time.

    Free Open Source Mac OS X Windows Linux Android iPhone Android Tablet BSD iPad

  • C++ icon

    C++

    C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose, powerful programming language.

    Free Open Source Mac OS X Windows Linux BSD

  • C# icon

    C#

    C# is a multi-paradigm programming language encompassing strong typing, imperative, declarative, functional, generic, object-oriented (class-based), and component-oriented programming disciplines.

    Free Open Source Mac OS X Windows Linux BSD

  • Lua icon

    Lua

    Lua is a powerful, fast, lightweight, embeddable scripting language. Lua combines simple procedural syntax with powerful data description constructs based on associative arrays and extensible semantics.

    Free Open Source Mac OS X Windows Linux Android iPhone Android Tablet BSD iPad

  • Perl icon

    Perl

    Perl is a high-level, general-purpose, interpreted, dynamic programming language with over 22 years of development. The Perl languages borrow features from other programming languages including C, shell scripting (sh), AWK, and sed.

    Free Open Source Mac OS X Windows Linux BSD Haiku

  • Haskell

    Haskell is an advanced purely-functional programming language. An open-source product of more than twenty years of cutting-edge research, it allows rapid development of robust, concise, correct software.

    Free Open Source Mac OS X Windows Linux BSD

  • FreeBASIC

    FreeBASIC is a completely free, open-source, 32-bit BASIC compiler, with syntax similar to MS-QuickBASIC, that adds new features such as pointers, unsigned data types, inline assembly, object orientation, and many others.

    Free Open Source Windows Linux

  • Elixir

    Elixir is a dynamic, functional language designed for building scalable and maintainable applications.

    Free Open Source Mac OS X Windows Linux BSD FreeBSD

  • Avian

    Avian is a lightweight virtual machine and class lbrary designed to provide a useful subset of Java’s features, suitable for building self-contained applications. It's Efficient.

    Free Open Source Mac OS X Windows Linux iPhone BSD iPad

  • Reinteract

    Reinteract is a system for interactive experimentation with Python. Reinteract worksheets contain Python code combined with the results of that code, formatted as text or graphical plots.

    Free Open Source Mac OS X Windows Linux

  • Quorum

    Quorum Programming Language. - The world's first evidence-oriented programming language.

    Free Open Source Mac OS X Windows Linux

  • Motti.NET (Programming Language)

    Motti.NET (mottidotnet) is a advanced programming language with visual and programming features. Reliable Motti.NET has been proven to be very stable Motti.NET is...

    Free Personal

  • Kitten programming language

    Kitten is a statically typed, stack-based functional programming language designed to be simple and fast. It is a concatenative language, combining aspects of imperative...

    Free Open Source Windows