Editor.js vs Quill

Editor.js is a free, self-hosted block-style editor that structures content and returns it as JSON. Its workspace keeps paragraphs, headings, images, lists, and quotes in separate blocks. Plugins provide the blocks, and developers can create additional ones through the API. The JSON can be rendered for web and mobile clients, Facebook Instant Articles, Google AMP, or audio; it can also be sanitized, validated, and processed on a backend. The getting-started guide includes header, link embed, image, checklist, list, embed, and quote tools. Installation options include npm or Yarn, a CDN, or a local project file. Read-only mode works when every block tool in use supports it. Configuration can localize the editor interface, tool names, tools, and block tunes. Editor.js supports JavaScript and TypeScript, structured content, and table editing, but not real-time collaboration. The site identifies CodeX, a non-profit team, as its maker, and lists the Apache 2 License. Its free plan costs nothing, with no free trial.

Quill is a free, API-driven rich text editor for developers. Its API exposes content, changes and events using JSON, with operations that access or modify content by indexes and lengths. The document model supports extensions for custom formats and embeds, including slide decks, interactive checklists and 3D models. Built-in formatting covers text styles, links, headings, lists, alignment, code blocks, images and video; formulas require KaTeX. Official modules provide configurable toolbar, clipboard, keyboard, history and syntax features. History supports undo and redo with adjustable delay, stack size and handling of programmatic changes. Clipboard matchers control copy, cut and paste, and the documentation warns that unsafe HTML handling can create cross-site scripting vulnerabilities. Developers can configure toolbar handlers or provide custom HTML. Quill includes Snow and Bubble themes, runs in modern desktop, tablet and phone browsers, and can be loaded from jsDelivr or npm with full and core builds. Slab maintains it under a BSD license for personal and commercial projects.