JavaScript playground: run your code online (JavaScript)

JavaScript playground: run your code online

This JavaScript playground will run your code online. Your code will not run in your browser but will be executed on the backend of

Edit and run this JavaScript example code

This code is editable and runnable. You can run "JavaScript playground: run your code online" by pressing the run button. It will be executed in our backend and the result (stdout and stderr) is displayed in addition tabs.


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oEmbed (WordPress)

We support oEmbed, but most sites use allowlisting. On WordPress, oEmbed is supported out of the box, but see the note below.

If you plan to use heavily on Wordpress, you can use the following PHP code to allowlist our site and unlock all the functionalities of our crumbs:
wp_oembed_add_provider( '*', '' ); is a service that allows you to embed content from other sites. We will request to be added to the list of trusted sites once we're out of beta.