Build local-first apps with type-safe documents and real-time sync.
Docukit is a set of libraries for building local-first applications: type-safe document models, real-time collaboration, and optional sync backends. Use DocNode for your document layer (with optional Lexical bindings) and DocSync when you need multi-client sync over WebSockets.
| Package | Description |
|---|---|
@docukit/docnode |
Type-safe document manager (OT/CRDT), undo manager, and schema normalization |
@docukit/docsync |
CRDT-agnostic sync protocol; works with DocNode, Yjs, Loro, and others |
@docukit/docnode-lexical |
Bind DocNode to Lexical for rich-text editors and presence |
Full docs, comparison tables (DocNode vs Yjs, DocSync vs Hocuspocus), and examples: docukit.dev.
npm i @docukit/docnodeimport { Doc, defineNode, string } from "@docukit/docnode";
const PageNode = defineNode({
type: "page",
state: { title: string(""), body: string("") },
});
const doc = new Doc({ type: "page", extensions: [{ nodes: [PageNode] }] });
doc.root.state.title.set("Hello, local-first.");See the DocNode getting started and DocSync getting started guides for more.
- Type-safe — Define nodes and state with TypeScript; get full inference and fewer runtime bugs.
- Local-first — Documents live locally; sync when connected. Works offline and scales to real-time.
- Flexible — Use DocNode alone, or add DocSync for server-backed sync. DocSync is CRDT-agnostic, so you can pair it with Yjs, Loro, or other CRDTs if you prefer.
Contributing / local dev: pnpm i then pnpm dev.