Node  

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  

golang.org

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

YAML

yaml.org

Ruby

ruby-lang.org

Object Pascal defunct

OmniSharp

omnisharp.net

Visual Basic

Tool Command Language

tcl.tk

Solid

solidproject.org

Qt

qt.io

Scratch

scratch.mit.edu

R

r-project.org

Rust

rust-lang.org

LESS

lesscss.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

Artoo

artoo.io

Lisp

lisp-lang.org

Modula-2

modula2.org