Popline
Popline is a non-intrusive WYSIWYG editor. It shows up only after selecting a piece of text on the page. Inspired by popclip. It provides commonly used editing features out-of-the-box. Easy to extend, Easy to customize. Two modes supported, edit mode and view mode. Two popup ways supported, fixed and relative. Compatible with Chrome, Safari, Firefox, Opera 15.0+, IE 8+. The default theme popline used is designed by @Pepsin. Popline also support View Mode, you can send a twitter, a facebook message, pin an image to pinterest, search with google in View Mode. Popline can popup at top of the paragraph which you selected (like Medium) or popup on the mouse pointer position. You can enable/disable/reorder plugins when popline initializes.
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ProseMirror
Rich content editors should, ideally, produce clean, semantically meaningful documents while still being easy for users to understand. ProseMirror tries to bridge the gap between editing explicit, unambiguous content like Markdown or XML, and classical WYSIWYG editors. It does this by implementing a WYSIWYG-style editing interface for documents more constrained and structured than plain HTML. You can customize the shape and structure of the documents your editor creates, and tailor them to your application's needs. ProseMirror has built-in, ground-up, rock solid support for collaborative editing, where multiple people work on the same document in real time. Document schemas allow editing documents with a custom structure without writing your own editor from scratch. A modular architecture makes sure you only load the code you need, and can replace parts of the system as needed. A plugin system allows you to easily enable additional functionality.
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Squire
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. It should work fine back to around Opera 10, Firefox 3.5, Safari 4, Chrome 9 and IE8. Unlike other HTML5 rich text editors, Squire was written as a component for writing documents (emails, essays, etc.), not doing wysiwyg websites. If you are looking for support for inserting form controls or flash components or the like, you'll need to look elsewhere. However for many purposes, Squire may be just what you need, providing the power without the bloat.
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Bubble
Create and launch fully-functional, data-driven web applications in a fraction of the time necessary to code it from scratch using Bubble! Bubble is powered by a robust point-and-click editor that allows users to build fully customizable web applications and workflows ranging from simple prototypes to complex marketplaces, SaaS products, and more. Over 1 million users have found success building and launching businesses on Bubble - many have gone on to participate in top accelerator programs, such as Y Combinator, and one company even raised $365M in venture funding. Bubble is more than just a product. It has created a strong community of builders and entrepreneurs that are united by the belief that everyone should be able to create technology. Traditional web applications require you to manage your code and set up a deployment process to a web server. Bubble handles deployment and hosting for you. There are no hard limits on the number of users, volume of traffic, or data storage.
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