AI extension, suggestions, autocomplete, skills, tools, and streaming for Pen

Transports for Pen: in-process direct and SSE

Library that provides API for generation of annotations by SAP Fiori App Generator

Editor core for roosterjs

Plugins for roosterjs

Color utilities for roosterjs

Framework-agnostic WYSIWYG rich text editing engine. Immutable state, schema-validated documents, invertible transactions.

Collaborative editing for Matra — step exchange, rebasing and presence. No CRDT dependency.

Document search and replacement primitives for Pen

DOM field-editor engine and helpers for Pen

Opinionated Markdown editor built on Milkdown Crepe: framework-agnostic core and styles

A visual json schema editor

Textbus is a rich text editor and framework that is highly customizable and extensible to achieve rich wysiwyg effects.

Provider-agnostic AI extension for @abhinavakhil/penna-core (free Groq default, any OpenAI-compatible API)

A Slate plugin that replaces pasted URLs with an anchor tags.

TipTap WYSIWYG editor core — Web, Electron & TenTap

RTIF browser editor: a contenteditable state machine over @rtif-sdk/engine.

Add a full-fledged integrated postnitro editor to your website.

The Alistigo document editor — pure, no UI. Takes an AlistigoDocument in, accepts commands (AddElement, DeleteElement, RenameList, …), produces events, folds them via the format package's projector, returns the updated document. The Application layer of t

Version history for Matra — snapshots, a real diff between them, and restore as one undo step.