Slate
A completely customizable framework for building rich text editors.
Dayjs
⏰ Day.js 2KB immutable date library alternative to Moment.js with the same modern API
Ace
Ajax.org Cloud9 Editor
Quasar
Quasar Framework
JS xls
Javascript XLS (Excel 97-2004 spreadsheet) parser and (one day) writer
JS Xlsx
Javascript XLSX / XLSM / XLSB (Excel 2007+) parser and (one day) writer
Moment
Parse, validate, manipulate, and display dates in javascript.
Webpack
Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jade, coffee, css, less, ... and your custom stuff.
Code Mirror
In-browser code editor
Highlight.js
Javascript syntax highlighter
D3
A JavaScript visualization library for HTML and SVG.
6to5
Turn ES6 code into readable vanilla ES5 with source maps
Babel
Babel is a compiler for writing next generation JavaScript.
Angular.js
AngularJS lets you write client-side web applications as if you had a smarter browser. It lets use good old HTML (or HAML, Jade and friends!) as your template language and lets you extend HTML’s syntax to express your application’s components clearly and succinctly
Uppy
The next open source file uploader for web browsers :dog:
Formik
Build forms in React, without the tears 😭
jQuery
jQuery JavaScript Library