awesome-online-services

Replit

The collaborative browser based IDE - Replit Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.

• https://replit.com/

Clojure, Haskell, Kotlin, QBasic, Forth, LOLCODE, BrainF, Emoticon, Bloop, Unlambda, CoffeeScript, Scheme, APL, Lua, Ruby, Roy, Python, Node.js, JavaScript, Deno (beta), Golang, C++, C, C#, F#, HTML, CSS, JS, Rust, Swift, Python (with Turtle), Basic (beta), R, Bash, Crystal, Julia, Elixir, Nim, Dart, Reason Node.js, Tcl, Erlang, TypeScript, Pygame, Love2D, Emacs Lisp (Elisp), PHP Web Server, SQLite, Java, PHP CLI, Pyxel, Raku, Scala (beta), Nix (beta), Kaboom (beta)

sharplab

.NET language playground

• https://sharplab.io/

• https://github.com/ashmind/SharpLab

Convert JSON to C# Classes Online

Json2CSharp Toolkit

• https://json2csharp.com/

Rust

Playground

• https://play.rust-lang.org/

go

The Go Playground

• https://play.golang.org/

Python

Colaboratory（Colab）Python サービス

• https://colab.research.google.com/

JavaScript -CodePen

HTML, CSS, JavaScript

• https://codepen.io

JS Bin

Collaborative JavaScript Debugging

• https://jsbin.com/?html,output

HostMath

Online LaTeX formula editor and browser-based math equation editor

• https://www.hostmath.com/

• https://www.hostmath.com/Demo.aspx

regex

regex101: build, test, and debug regex

QUICK REFERENCEが便利

• https://regex101.com/　

regex

RegExr: Learn, Build, and Test RegEx

• https://regexr.com/

PHP -Online PHP editor

Test code in 250+ PHP versions

• https://3v4l.org/

Squoosh

image compression web app

• https://squoosh.app/

音読さん

日本語 音声読み上げソフト

• https://ondoku3.com/ja/

References

• https://github.com/styfle/awesome-online-ide

• https://github.com/hql287/awesome-free-services