A cmmn 1.1 toolkit

Usage no npm install needed!

<script type="module">
  import cmmnJs from '';


cmmn-js - CMMN 1.1 for the web

Build Status

View and edit CMMN 1.1 diagrams in the browser.


Use the library pre-packaged or include it via npm into your node-style web-application.


To get started, create a cmmn-js instance and render CMMN 1.1 diagrams in the browser:

var xml; // my CMMN 1.1 xml
var viewer = new CmmnJS({
  container: 'body'

viewer.importXML(xml, function(err) {

  if (err) {
    console.log('error rendering', err);
  } else {

Checkout our examples for many more supported usage scenarios.

Dynamic Attach/Detach

You may attach or detach the viewer dynamically to any element on the page, too:

var viewer = new CmmnJS();

// attach it to some element

// detach the panel


Building the Project

Perform the following steps to build the library, including running all tests:

cd cmmn-js
npm install
npm run all

You may need to perform additional project setup when building the latest development snapshot.

Please checkout our contributing guidelines if you plan to file an issue or pull request.


cmmn-js builds on top of a few additional powerful tools:

  • cmmn-moddle: Read / write support for CMMN 1.1 XML in the browsers
  • diagram-js: Diagram rendering and editing toolkit


Use under the terms of the license.