About Quilljs
Quilljs is a free, open source WYSIWYG editor built for the modern web. Its modular architecture and expressive API let developers customize it for a wide range of editing needs.

Key Features
Key features include:
Modular architecture
Enables customization for different editing needs through interchangeable modules.
Expressive API
Provides granular access to editor content, changes, and events.
JSON input/output compatibility
Ensures consistent data interchange via JSON.
Cross-platform browser support
Works across modern browsers on desktops, tablets, and phones.
Summary
The primary value for development teams is providing granular, JSON-driven access to content, changes, and events, along with a modular architecture that supports custom toolchains and consistent rendering across browsers.