A CKEditor alternative that's MIT, end to end.
CKEditor 5 is powerful, but it's a full UI framework under a GPL-or-commercial license, and its real-time collaboration is a paid product. Rune is headless, MIT-licensed, zero-dependency, and ships free Yjs-based collaboration.
Rune vs CKEditor
| rune | CKEditor | |
|---|---|---|
| Zero runtime dependencies | Yes | No — large dependency set |
| No build step required | Yes | No |
| Headless / CSS-variable theming | Yes | No — full UI framework |
| Config-driven toolbar & menus | Yes | Partial — toolbar config |
| Works without a framework | Yes | Yes |
| Real-time collaboration | Built in (Yjs) | Paid commercial feature |
| License | MIT, fully free | GPL or commercial |
What you gain with Rune.
- 01
MIT, not GPL or commercial
CKEditor 5 is GPL-2.0-or-later or a paid commercial license for closed-source apps. Rune is MIT — no license fees, no copyleft obligations.
- 02
Headless, not a UI framework
CKEditor ships its own opinionated UI and theme system. Rune is headless and themed entirely with CSS variables, so it inherits your design.
- 03
Collaboration without a contract
CKEditor's real-time collaboration is a paid product. Rune's Yjs-based presence, comments, and tracked changes are MIT-licensed and bring-your-own-transport.
Migrating from CKEditor
CKEditor creates an editor from a DOM element plus a toolbar/plugin config and emits HTML. Rune does the same from a config object — minus the build tooling and the licensing questions.
import { ClassicEditor } from 'ckeditor5'
import 'ckeditor5/ckeditor5.css'
ClassicEditor
.create(document.querySelector('#editor'), {
toolbar: ['bold', 'italic', 'link'],
})
.then((editor) => {
editor.model.document.on('change:data', () =>
console.log(editor.getData()))
})import { createFromConfig } from '@parityfox/rune-editor'
import config from './rune.config.js'
import '@parityfox/rune-editor/styles'
const editor = createFromConfig('#editor', config, {
content: '<p>Hello</p>',
onChange: (html) => console.log(html),
})When to choose CKEditor instead
CKEditor is one of the most mature editors available — a vast feature set, dedicated enterprise support, strong accessibility, and a managed collaboration backend. For organisations that want commercial support and are fine with the licensing, CKEditor is hard to beat.
Questions
- Is Rune free for commercial use?
- Yes. Rune is MIT-licensed with no commercial tier. CKEditor 5 is GPL-2.0-or-later, or requires a paid commercial license for closed-source projects.
- Does Rune have real-time collaboration like CKEditor?
- Yes, and it's free. Rune ships an opt-in Yjs collaboration layer with presence, comments, and tracked changes; CKEditor's real-time collaboration is a paid feature.
- Is Rune headless, unlike a CKEditor build?
- Yes. Rune is fully headless and themed with CSS variables. CKEditor ships its own UI framework and theming system.
Try the MIT-licensed alternative.
Install Rune and build an editor in minutes — headless, free end to end, and collaboration-ready.