Fastmail Squire is described as 'Squire is an HTML5 rich text editor, which provides powerful cross-browser normalisation, whilst being supremely lightweight and flexible. It is built for the present and the future, and as such does not support truly ancient browsers' and is a Text Editor in the office & productivity category. There are more than 10 alternatives to Fastmail Squire for a variety of platforms, including Self-Hosted, Web-based, JavaScript, Joomla and SaaS apps. The best Fastmail Squire alternative is Wordgard, which is both free and Open Source. Other great apps like Fastmail Squire are TinyMCE, CKEditor, Tiptap and Glee.
Open-source, schema-based JavaScript library enabling in-browser rich-text editing, modular extensions for custom elements, accessibility, collaborative real-time editing, UI internationalization, right-to-left writing, structured content, and functional programming style.
TinyMCE is a 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.
United States
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.
Poland
EU
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.
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.
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.
Aloha Editor is an HTML5 WYSIWYG Editor that gives you a total new experience when editing. It's faster than existing WYSIWYG technologies and offers unprecedented WYSIWYG functionalities.
United Kingdom
CLEditor is an open source jQuery plugin which provides a lightweight, full featured, cross browser, extensible, WYSIWYG HTML editor that can be easily added into any web site.
markItUp! is a JavaScript plugin built on the jQuery library. It allows you to turn any textarea into a markup editor. Html, Textile, Wiki Syntax, Markdown, BBcode or even your own Markup system can be easily implemented.
