TinyMCE is described as 'Platform independent web based Javascript HTML WYSIWYG editor control released as Open Source under LGPL by Moxiecode Systems AB. It has the ability to convert HTML TEXTAREA fields or other HTML elements to editor instances' and is a popular Text Editor in the development category. There are more than 25 alternatives to TinyMCE for a variety of platforms, including Web-based, Self-Hosted, JavaScript, Opera and Internet Explorer apps. The best TinyMCE alternative is CKEditor. It's not free, so if you're looking for a free alternative, you could try CKEditor or Trumbowyg. Other great apps like TinyMCE are Quill, Tiptap, ProseMirror and ContentTools Editor.
CKEditor 4 and CKEditor 5 are easy-to-implement open source JavaScript WYSIWYG rich text editors for any web browser. CKEditor Ecosystem has 2 very distinct rich text editors as well as image upload and collaboration solutions.
Trumbowyg is a very small jQuery plugin (16 kB minified) for creating a powerful WYSIWYG editor. Features:
Quill is a free, open source WYSIWYG editor built for the modern web. With its modular architecture and expressive API, it is completely customizable to fulfill any need.
The headless rich text editor framework for web artisans. Build products with real-time synchronization, amazing content experience, whiteboard collaboration, real-time editing, AI-powered content and version control efficiency.
ProseMirror tries to bridge the gap between editing explicit, unambiguous content like Markdown or XML, and classical WYSIWYG editors.
A small & beautiful WYSIWYG editor for HTML content. ContentTools is a collection of small, flexible, extensible and framework agnostic JavaScript libraries for creating beautiful WYSIWYG editors for HTML content.
Integrated toolbar (includes color picking) in a textarea or div.
WYSIWYG Editor built with jQuery, Bootstrap and Font-Awesome. MIT-licensed. 2500+ stars on GitHub.
N1ED is an add-on for CKEditor and TinyMCE that completely redefines your vision of WYSIWYG editors. Absolutely FREE. Auto update from CDN.
Editor.js is a block-styled editor for rich media stories. It outputs clean data in JSON instead of heavy HTML-markup. And more important thing is that Editor.js is designed to be API extendable and pluggable.
Alloy Editor is a modern WYSIWYG editor built on top of CKEditor, designed to create modern and gorgeous web content.
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They're both top-of-the-line open source WYSIWYG HTML editors.