JavaScript Tools

JS utilities:

• lodash
• underscore.js
• Moment.js
• string.js
• Numeral.js
• accounting.js
• xregexp.com
• Math.js
• wait
• async
• format.js

Transpiling (ESX to ESX):

• Babel

JavaScript compatibility checker:

• http://jscc.info/

Linting/hinting:

• jshint
• eshint
• JSLint
  • jslinterrors.com

Unit testing:

• Mocha
• QUnit
• Jasmine
  • Jest

Testing assertions for unit testing:

• should.js
• Chai
• expect.js

Test spies, stubs, and mocks for unit testing:

• sinon.js

Code style linter :

• JSCS

Code formater/beautifier:

• jsfmt
• esformatter
• js-beautify

Performance testing:

• jsperf
• benchmark.js

Visualization, static analysis, complexity, coverage tools:

• jscomplexity.org
• istanbul
• Blanket.js
• Coveralls [$]
• Plato
• escomplex
• Esprima

Optimizer:

• UglifyJS 2

Obfuscate:

• Javascript Obfuscator [free to $]
• JScrambler [$]

Online js code editors:

• jsbin.com
• jsfiddle.net
• es6fiddle.net

Online Regular expression editors/visual tools:

• regex101
• regexper
• debuggex
• RegExr

Authoring conventions:

• Node.js Style Guide
• Principles of Writing Consistent, Idiomatic JavaScript
• Airbnb JavaScript Style Guide

Trending JS repositories on Github this month:

https://github.com/trending?l=javascript&since=monthly

Most depended upon packages on NPM:

https://www.npmjs.com/browse/depended