Node.js    

nodejs.org

The Node.js JavaScript Runtime. Need some help with Node.js? Please ask here: https://github.com/nodejs/help 

Java    

The official Java Twitter channel with content by the Java community for the Java community. Managed by @chrisbensen

Python    

python.org

The Python Software Foundation. For help with Python code, see comp.lang.python.

TypeScript    

typescriptlang.org

TypeScript is a language for application-scale JavaScript development. It's a typed superset of JavaScript that compiles to plain JavaScript.

Go    

go.dev

Go will make you love programming again. We promise.

Kotlin    

kotlinlang.org

Statically typed programming language targeting JVM, Android, JavaScript & Native / Sponsored and Developed by @JetBrains

PHP    

php.net

The official Twitter account for http://php.net .

Swift Language      

swift.org

Say no to hefty books 📚. Learn Apple's Swift Programming Language. A different approach to learning. Administrator: @sunnyrupabhinda

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Open source at http://Swift.org 

Elixir    

elixir-lang.org

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

Scala    

scala-lang.org

The Scala Programming Language. Updates from the Scala Center and the Scala team at Lightbend.

Elm    

elm-lang.org

Official tweets for the Elm programming language

Julia    

julialang.org

Julia is a high-level, high-performance dynamic programming language for technical computing. Join the conversation at #JuliaLang

Haskell    

haskell.org

Committed to a welcoming, vibrant & flourishing #Haskell community! Managed by @nikivazou on behalf of the http://Haskell.org  Committee

Racket    

racket-lang.org

Official Twitter account for the Racket programming language.

Lua    

lua.org

Nobody talks about Lua. This is not an official Lua twitter account yet an information stream about the Lua programming Language.

Hackr.io    

hackr.io

Community Curated Programming Resources - Tutorials, Courses, Books, Videos & Case Studies Submit & Recommend your favourite Resources  Learn Programming

Solidity    

solidity.readthedocs.io

Solidity is an object-oriented, high-level language for implementing smart contracts. Join the virtual #SoliditySummit Apr 29-30 http://tinyurl.com/r5gu9w7 

Perl    

Stylus Lang    

stylus-lang.com

MicroPython    

micropython.org

YAML  

yaml.org

Ruby  

ruby-lang.org

Object Pascal defunct

OmniSharp  

omnisharp.net

Visual Basic  

docs.microsoft.com

Tool Command Language  

tcl.tk

Solid  

solidproject.org

Qt  

qt.io

Scratch  

scratch.mit.edu

R  

r-project.org

Rust  

rust-lang.org

Lisp  

lisp-lang.org

ReactiveX  

reactivex.io

Delphi defunct

delphionline.eu

C  

Clang  

clang.llvm.org

Clojure  

clojure.org

CocoaPods  

cocoapods.org

CoffeeScript  

coffeescript.org

C++  

isocpp.org

Crystal Language  

crystal-lang.org

C#  

D  

dlang.org

Dart  

dartlang.org

Mustache  

mustache.github.io

F#  

FORTRAN defunct

ibm.com

Globus Swift  

swift-lang.org

GraphQL  

graphql.org

Idris  

idris-lang.org

Jade  

jade-lang.com

LESS  

lesscss.org

Artoo  

artoo.io

Modula-2  

modula2.org