Code Linters and Formatters for Web Developers

There are many online tools that help you lint or format code. This post list many of the most useful ones for HTML, CSS and JavaScript

Published Mar 14, 2018

Official online version of popular projects that improve your JavaScript code

Prettier (formatter)

https://prettier.io/playground/

ESLint (linter)

https://eslint.org/demo

JSHint (linter)

http://jshint.com/

Tools for other languages

CSS

http://www.codebeautifier.com/

HTML

http://htmlformatter.com/

JSON

GraphQL

http://toolbox.sangria-graphql.org/format

General purpose (handle more than 1 single syntax)

https://ctrlq.org/beautifier/

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