ASP.NET Alternatives

Pascal is a free and open-source imperative and procedural programming language. The language was designed 1970 by Niklaus Wirth to encourage good programming practices using structured programming and data structuring.

A mature, open-source, cross-platform strongly typed functional-first programming language designed by Don Syme at Microsoft Research. While being a functional-first programming language F# also encompasses imperative and object-oriented programming paradigms. F# is most commonly used as a cross-platform Common Language Infrastructure language, while also having the capability to generation graphics processing unit code and compile down to JavaScript.

C is a free and open-source general-purpose, procedural programming language. The language supports structured programming, lexical variable scope, and recursion, with a static type system. By design, C provides constructs that map efficiently to typical machine instructions. C was first created and released in 1972 at Bell Labs by Dennis Ritchie, today C is used in systems where you need absolute control over memory management such as OS kernels and other mission critical software.

Cython is a free and open-source optimising static compiler and a superset of the programming language Python. Cython is designed to give C-like performance for code written with Python. The language also provides an optional C-inspired syntax and the ability to create CPython extension modules.

Eiffel is an free and open-source object-oriented programming language designed at Eiffel Software by Bertrand Meyer back in 1985. Bertrand Meyer had one goal in mind when he created the language, the goal of increasing the reliability of commercial software development. Today Eiffel comes with its own IDE (Integrated Development Environment) called EiffelStudio, the software can be used to write Eiffel code in a single user interface that includes a compiler, interpreter, debugger, browser, metrics tool, profiler, diagram and code inspector.

Developed by Facebook as free and open-source dialect of PHP, Hack is a programming language for the HipHop Virtual Machine. Hack is licensed under the MIT License and allows developers to use both dynamic typing and static typing.

A general purpose, object-oriented programming language that adds Smalltalk-style messaging to the C programming language. Objective-C was specifically designed for the Apple ecosystem and their respective application programming interfaces, Cocoa and Cocoa Touch for building applications for macOS and iOS. Since 2014 the Apple ecosystem rely on their new programming language Swift.

Silq is a free and open-source high-level programming language specifically for quantum computing. The language is openly developed by ETH Zürich and provides a strong static type system.

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Haxe is an open-source, high-level, cross-platform, multi-paradigm programming language and compiler. Haxe allows developers to build applications with a single code-base, that can be utilized on many different platforms. The compilers allow developers to build games, web, mobile, desktop, command-line and cross-platform APIs targeting JavaScript, C++, C#, Java, JVM, Python, Lua, PHP, Flash. Haxe is developed and managed by the Haxe Foundation and released fully free and open-source under the MIT license.

A free and open object-oriented programming language with a self-hosting compiler that generates C code. Vala uses the GObject system and is syntactically similar to C# while introducing unique features like functions, signals, properties, generics, assisted memory management, exception handling, type inference, and foreach statements. Vala makes it simple to target the GNOME stack and is also used for writing applications to the operating system elementary OS.

WebAssembly or WASM for short, is an open standard and binary instruction format for a stack-based virtual machine. WebAssembly run in all modern web browsers at near-native performance and provides languages such as C/C++ and Rust with a compilation target so that they can run on the web. The language is designed to run alongside JavaScript, allowing both to work together, while simultaneously redefining the web's capability.