Your first app

Getting Started

  1. 1.
    Signup or login to
  2. 2.
    Click on My Apps in the navigation and click Add App.
Your first app will now be created!
Then you'll redirected to your apps code and preview.
Below is an example of an Mu app:
h1 {
color: red;
<h1>Hello world!</h1>
Now your app is created, you will now have access to all of Mu's functionality. This can be found at or mu. For more information on this please read our documentation.
The best way to add a popular JS framework is to use a CDN. Here is an example using Vue.js:
<script src=""></script>
body {}
<div id="app">{{ message }}</div>
<script type="module">
import { createApp, ref } from ''
setup() {
const message = ref('Hello vue!')
return {
Last modified 1mo ago