Quill is a modern rich text editor built for compatibility and extensibility. It was created by Jason Chen and Byron Milligan and open sourced by Salesforce.com. It provides granular access to the editor's content, changes and events through a simple API. It works consistently and deterministically with JSON as both input and output.

Quill - Your powerful, rich text editor

Handsontable Community Edition (CE) is an open source JavaScript/HTML5 UI Spreadsheet component for web apps. It easily integrates with any data source and comes with a variety of useful features like data binding, validation, sorting or powerful context menu. It is available for Vue, React, Angular and Polymer.

Handsontable - JavaScript/HTML5 UI Spreadsheet library for web apps. Available for React, Vue and Angular

Alloy Editor is a modern WYSIWYG editor built on top of CKEditor, designed to create modern and gorgeous web content. It provides smart toolbars appear right near the selected text and offer different functionality based on context, Paste rich text from any web page and preserve its formatting, The full styling power of CKEditor and lot more.

Alloy Editor - WYSIWYG editor based on CKEditor with completely rewritten UI

Slate is a  completely customizable framework for building rich text editors. Slate lets you build rich, intuitive editors like those in Medium, Dropbox Paper or Google Docs—which are becoming table stakes for applications on the web—without your codebase getting mired in complexity. It can do this because all of its logic is implemented with a series of plugins, so you aren't ever constrained by what is or isn't in "core". You can think of it like a pluggable implementation of contenteditable built on top of React. It was inspired by libraries like Draft.js, Prosemirror and Quill.

Slate is a completely customizable framework for building rich text editors. Slate lets you build rich, intuitive editors like those in Medium, Dropbox Paper or Google Docs—which are becoming table stakes for applications on the web—without your codebase getting mired in complexity. It can do this because all of its logic is implemented with a series of plugins, so you aren't ever constrained by what is or isn't in "core". You can think of it like a pluggable implementation of contenteditable built on top of React. It was inspired by libraries like Draft.js, Prosemirror and Quill.

Slate - A completely customizable framework for building rich text editors

The Suneditor is a lightweight, flexible, customizable WYSIWYG text editor for your web applications. It has support to Embed images, Videos, Image resizing and rotation, Upload images to the server, Image gallery, Tables and lot more. It has support to use CodeMirror and KaTeX. 

SunEditor - Pure Javascript based WYSIWYG html editor, with no dependencies

TinyMCE is a platform independent web based Javascript HTML WYSIWYG editor control. It has the world's most advanced rich text editor has all the features developers are looking for. It has support for Images, Image resize, Auto save, BBCode, Code, Color picker, Full screen, Spell checker, Media, Table, Table of contents, Word count, Visual Blocks and lot more.

TinyMCE - The world's #1 JavaScript library for rich text editing. Available for React, Vue and Angular

A JS library for building WYSIWYG editors for HTML content. It is one of a collection of libraries designed for building tools that make it easier to edit HTML content. It is framework agnostic, The library doesn't use any JavaScript frameworks (no JQuery) but plays nicely with any of them. 

ContentTools - A beautiful & small content editor

Fontello is a tool to quickly pack vector images into webfonts. Consider it like Twitter Bootstrap, but for images. It builds everything necessary to include graphics into your web pages. Also, fontello has a big built-in collection of open source artworks.
 
With fontello you can:
<ol>
<li>shrink glyph collections, minimizing font size</li>
<li>merge symbols from several fonts into a single file</li>
<li>access large sets of professional-grade open source icons</li>
</ol>

Fontello is a tool to quickly pack vector images into webfonts. Consider it like Twitter Bootstrap, but for images. It builds everything necessary to include graphics into your web pages. Also, fontello has a big built-in collection of open source artworks.

fontello - Iconic fonts scissors

WYMeditor is a web-based WYSIWYM (What You See Is What You Mean) XHTML editor (not WYSIWYG). WYMeditor has been created to generate perfectly structured XHTML strict code, to conform to the W3C XHTML specifications and to facilitate further processing by modern applications.
	Its features include:
 <ul>
 <li>XHTML strict + CSS compliant</li>
 <li>No font or text formatting, sizes or colors - WYMeditor is CSS-based</li>
 <li>Designed to be easy to integrate into your application</li>
 <li>No installation needed - this is 100% Javascript code - no plugin, no extension
 <li>Will remain as simple as possible</li>
 <li>We focus on well-tested code, stability and usability before adding new features</li>
 <li>Image, link, table support</li>
 <li>Skins support via CSS</li>
 <li>Internationalization</li>
 <li>APIs, plugins support
 </ul>

 Supported browsers:
 <ul>
 <li>Gecko-based browsers (Firefox 2.0+, SeaMonkey, Galeon, Epiphany, ...)</li>
 <li>Microsoft Internet Explorer 6, 7 and 8</li>
 <li>Opera 9.5+</li>
 <li>Safari 3.1+</li>
 <li>Google Chrome</li>
 </ul>

WYMeditor is a web-based WYSIWYM (What You See Is What You Mean) XHTML editor (not WYSIWYG). WYMeditor has been created to generate perfectly structured XHTML strict code, to conform to the W3C XHTML specifications and to facilitate further processing by modern applications.

Wymeditor - Web-based XHTML editor

Draft.js is a JavaScript rich text editor framework, built for React and backed by an immutable model. Draft.js makes it easy to build any type of rich text input, whether you're just looking to support a few inline text styles or building a complex text editor for composing long-form articles.

Draft-js - A React framework for building text editors

Codebox is a complete and modular Cloud IDE. It is an open source component of codebox.io (Cloud IDE as a Service).The IDE can run on your desktop (Linux or Mac), on your server or the cloud. Codebox is built with web technologies: node.js, javascript, html and less. The IDE possesses a very modular and extensible architecture, that allows you to build your own features with through add-ons. 

Codebox - Open source Cloud & Desktop IDE

CKEditor is a text editor to be used inside web pages. It's a WYSIWYG editor, which means that the text being edited on it looks as similar as possible to the results users have when publishing it. It brings to the web common editing features found on desktop editing applications like Microsoft Word and OpenOffice. It's an editor to be used inside web pages. 
 End User features: 
 <UL>
	<LI>Basic and Advanced Styling</LI>
	<LI>E-mail Linking</LI>
	<LI>Visual Link Anchors</LI>
	<LI>Find and Replace</LI>
	<LI>Insert Templates, Tables, Images, Smiles</LI>
	<LI>Form Creation Tools</LI>
	<LI>Spell Check as You Type</LI>
	<LI>Intuitive Context Menu</LI>
	<LI>Keyboard Navigable</LI>
 </UL>
 Developer Features:
 <UL>
	<LI>Rich JavaScript API</LI>
	<LI>Plugin Based</LI>
	<LI>Total Toolbar Control</LI>
	<LI>AJAX Ready</LI>
	<LI>On Demand Loading</LI>
	<LI>Strong Browser Compatibility</LI>
	<LI>Styling with CSS</LI>
	<LI>Keystrokes Configuration</LI>
	<LI>Context Menu Settings</LI>
	<LI>Quality XHTML Output</LI>
	<LI>Contents in Any Language</LI>
 </UL>

CKEditor is a text editor to be used inside web pages. It's a WYSIWYG editor, which means that the text being edited on it looks as similar as possible to the results users have when publishing it. It brings to the web common editing features found on desktop editing applications like Microsoft Word and OpenOffice. It's an editor to be used inside web pages.

CKEditor - The best browser-based WYSIWYG editor

A beautiful Javascript WYSIWYG HTML rich text editor. High performance and modern design make it easy to use for developers and loved by users.

Froala Editor - A beautifully designed WYSIWYG HTML Editor based on HTML5.

slap is a Sublime-like terminal-based text editor that strives to make editing from the terminal easier. It has a Sublime-like file sidebar, Double-click to select word, highlight other occurrences, Syntax highlighting for 100+ languages, Autoindentation and lot more.

Slap - Sublime-like terminal-based text editor

Super simple WYSIWYG Editor. Summernote is a JavaScript library that helps you create WYSIWYG editors online. It saves images directly in the content of the field using base64 encoding, so you don't need to implement image handling at all. It also supports paste images from clipboard, Interactive WYSIWYG editing, Handy integration with server and lot more.

Summernote - Super simple WYSIWYG editor

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