Slate.js

Slate.js is a completely customizable framework for building rich text editors in React, designed from the ground up to address the limitations and frustrations developers encounter with existing editor libraries like Draft.js, Quill, and ProseMirror. Created by Ian Storm Taylor, Slate.js takes a fundamentally different approach: instead of providing a fixed set of features with limited configuration options, it provides a flexible, pluggable architecture where every aspect of the editor can be customized, extended, or replaced. The core of Slate.js is a document model based on a tree of nodes (Editor, Element, and Text nodes), which allows for complex document structures beyond simple flat text. This tree-based model supports nested content blocks, inline elements, void nodes (like images or embeds), and arbitrary custom node types. The framework's plugin system treats every feature as a plugin that can override or augment editor behavior: bold, italic, underline, links, lists, tables, code blocks, images, and any custom element type can be added through a straightforward plugin API. Slate.js also provides sophisticated selection handling, undo/redo history management, copy and paste normalization (converting clipboard content to the internal model), keyboard shortcut customization, and collaborative editing support via operational transform or CRDT libraries. The framework uses Immutable.js-style immutable data structures for efficient document updates and React reconciliation. As of 2026, Slate.js has over 30,000 GitHub stars, is used by companies including Airbnb, Google, Medium, and Slack, and is licensed under the MIT license.