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OpenKnowledge is a beautiful markdown editor with integrations with Claude, Codex, and other harnesses. For knowledge bases, LLM wikis, specs, and notes. Private, local, and free.

The Tiptap Editor is a headless, framework-agnostic rich text editor that's customizable and extendable through extensions. Its headless nature means it comes without a set user interface, offering full design freedom (for a jumpstart, see linked UI templates below).

Built for public organizations, companies, and open communities.

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Quill is a modern WYSIWYG editor built for compatibility and extensibility

Powerful rich text editor framework with a modular architecture, modern integrations, and features like collaborative editing.

Compose beautifully formatted text in your web application. Trix is a WYSIWYG editor for writing messages, comments, articles, and lists—the simple documents most web apps are made of.

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

📝 the simplest and smallest WYSIWYG text editor for web, with no dependencies

Summernote is a JavaScript library that helps you create WYSIWYG editors with a simple and easy-to-use interface. Summernote is licensed under the MIT license and maintained by the community.

wangEditor, open-source Web rich text editor 开源 Web 富文本编辑器

♏ 一款浏览器端的 Markdown 编辑器，支持所见即所得（富文本）、即时渲染（类似 Typora）和分屏预览模式。An In-browser Markdown editor, support WYSIWYG (Rich Text), Instant Rendering (Typora-like) and Split View modes.