Mercury Editor
Mercury is a full featured HTML5 editor. It was built from the ground up to help your team get the most out of content editing in modern browsers. Mercury comes bundled as a Rails Engine, so just include it in your Gemfile. Or download the current bundled package if you're not using Rails. We don't inject javascript or css into your production pages so you're free to use whatever frameworks you want without having to worry about conflicts. Easily add or remove toolbar items or create entirely new tools. Any toolbar item can be tied to an action using behaviors and the command pattern. Full HTML, Simple, Markdown, Snippet and Image regions are supported by default, but you can just extend the base regions to build your own types. Built on top of the HTML5 contentEditable features, it natively supports the all the fancy new HTML5 elements, syntax, and JavaScript APIs.
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wysihtml
wysihtml is an extended and less strict approach on xing/wysihtml5 open source rich text editor. The code is library agnostic and has all dependencies bundled, no jQuery, Prototype or similar is required. The currently bundled dependencies are rangy.js (including textrange and selectionsaverestore modules) and base.js. This project is supported by Voog. It’s an open source, community developed wysiwyg html rich text editor. Any web developer can grab it and use it in her projects. Fast and lightweight, auto-linking of urls as-you-type, valid, semantic HTML5 (even when pasting from Word), no iframes required, no jQuery required, and it's modular, so you can add your own tools. Object namespace is now wysihtyml (was previously wysihtml5). This change includes all classnames and event names. The default toolbar is separated to independent module (wysihtml.toolbar.js) and must be added separately if used.
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BlockNote
BlockNote is an open source, block-based rich text editor for React that offers a polished, Notion-style user experience with minimal setup. It comes with built-in UI components like menus and toolbars, which are fully customizable. It supports drag-and-drop functionality, allowing users to organize content into blocks that can be nested or rearranged. Developers can extend the editor with custom blocks, schemas, and plugins, benefiting from first-class TypeScript support for type safety and autocompletion. BlockNote enables real-time collaboration using Yjs, with support for providers like Liveblocks and PartyKit, allowing multiple users to edit documents simultaneously. It also supports theming, markdown, and HTML conversion, and can be used with vanilla JavaScript for non-React projects. Built on top of ProseMirror and TipTap, BlockNote simplifies the process of adding a rich text editor to applications, eliminating the need to build interface elements from scratch.
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Froala
Discover Froala, the beautiful JavaScript WYSIWYG editor that seamlessly integrates into your projects. Its intuitive smart toolbar packs over 100 features into four simple categories, offering both power and simplicity. With comprehensive documentation and over 30 out-of-the-box plugins, developers can quickly implement and customize Froala to suit any use case. Enjoy unlimited editor loads and users, self-hosting options, and regular updates supporting the latest LTS versions of React, Angular, and Vue. Froala transforms content creation, combining developer flexibility with a user-friendly interface that your audience will love.
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