slab/quill

Quill — a modern WYSIWYG editor built for compatibility and extensibility. Cross-browser, cross-framework, with a powerful delta-based document model.

What it is

A TypeScript / JavaScript rich-text editor library used in many production apps. Distinguishes itself via a "Delta" data model — every document change is a Delta operation, making collaborative editing and history tractable. Originally authored at Salesforce, now maintained by Slab. Used by Microsoft Teams, Figma, Slack, LinkedIn, and many others in production.

Key features

Delta-based document model (operational transformations friendly).
Cross-framework — works with React, Vue, Angular, vanilla JS.
Module-based extensibility.
Themes (Snow, Bubble) + custom theming.
Toolbar, syntax highlighting, table support.
BSD-3-Clause / MIT licensed (verify per release).

Tech stack

TypeScript primary.
npm package: quill.

When to reach for it

You need a robust WYSIWYG editor with a clean data model.
You're building collaborative editing on top — Quill's Delta integrates with OT engines.

When not to reach for it

You want a markdown-flavored editor (Tiptap, ProseMirror direct).
You want a fully prebuilt UI — Quill is library-style; you compose the surrounding UI.

Maturity signal

44k+ stars, actively maintained.

Alternatives

Tiptap — ProseMirror-based modern alternative.
ProseMirror directly — for full control.
Slate.js — React-flavored framework.

Wiki: slab/quill