slash-editor

slash-editor is an open-source, Notion-style block editor designed for React applications, providing a familiar and flexible editing experience for developers and content creators alike. Built on a headless Tiptap v3 core, it offers features such as a slash menu, drag handles, nested reordering, turn-into options, comments, and real-time collaboration. Its UI is delivered through a shadcn registry, ensuring seamless integration with Tailwind CSS, allowing developers to maintain full control over the look and feel of their app. The tool also supports advanced functionalities like tables, columns, Mermaid diagrams, markdown import/export, and AI integrations via your own models, all while being fully MIT licensed and hosted locally—no paid tiers or hosting required. slash-editor empowers teams to build highly customizable, collaborative content editing experiences within their React projects, making it ideal for SaaS products, knowledge bases, or complex documentation systems.