Online Tools Services

IQAir地球大気汚染マップ

IQAir地球大気汚染マップ

ライブアニメーション大気質マップ（AQI、PM2.5 …）| IQAir

テレビ番組リアルタイム視聴率

TVAL now（ティーバルナウ） – テレビ番組リアルタイム視聴率 (switch-m.com)

STL

Stereolithography,
Standard Triangulated Language,
Standard Tessellation Language 

Free online STL viewer (viewstl.com)

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

https://codepen.io HTML, CSS, JavaScript

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

https://regex101.com/　QUICK REFERENCEが便利

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/

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