@matrajs/core

@matrajs/core

A headless rich text editor framework. Engine, document model, extension API and starter kit — framework-agnostic and MIT.

npm i @matrajs/core

import { createEditor, starterKit } from '@matrajs/core'

const editor = createEditor({ extensions: starterKit, content: '<p>Hello</p>' })
editor.mount(element)
editor.commands.toggleHeading(2)

What makes it different

Commands are inferred. editor.commands is built from the definitions you pass — no module augmentation, no registry, no generics to thread. Calling a command no extension defines is a compile error.

The engine stays hidden. The document is plain JSON and no engine type appears in a public signature. editor.unsafe is the escape hatch and is excluded from semver.

Positions survive time. ctx.mark() returns a marker that re-resolves a range through every edit made since it was taken — the reason a three-second-late AI response lands on the right words instead of corrupting the paragraph.

Companions

• @matrajs/react — useEditor, useEditorState, EditorContent

• @matrajs/ai — streaming edits that survive concurrent typing

• Docs: https://matrajs.com

• Source: https://github.com/amrelaco/matra

MIT.