Code Sample plugin

The Code Sample plugin (codesample) lets a user insert and embed syntax color highlighted code snippets into the editable area. It also adds a button to the toolbar which on click will open a dialog box to accept raw code input.

Basic setup

  selector: 'textarea',  // change this value according to your HTML
  plugins: 'codesample',
  toolbar: 'codesample'

By default, codesample uses to embed the code samples within the editor and works out of the box. That is, when a user copies valid code syntax into the editable area the code will be automatically formatted according to Prism default CSS rules.

Prism.js and prism.css need to be added to a page for syntax highlighting to work. See the instructions below to learn how to do this.

Using Prism.js on your web page

You need to add prism.js and prism.css to your page in order to get the syntax highlighted code samples on your webpage (as created by the Code Sample plugin). The Code Sample plugin uses the following languages: markup, javascript, css, php, ruby, python, java, c, csharp and cpp. You can generate the prism.js and prism.css files on the download page at the Prism website.

Example of using the Prism.js script

<link rel="stylesheet" type="text/css" href="prism.css">
<script src="prism.js"></script>
<pre class="language-markup"><code>...</code></pre>

Interactive example

  • TinyMCE

  • HTML

  • JS

  • Edit on CodePen

<textarea id="codesample">
  <p><img style="display: block; margin-left: auto; margin-right: auto;" title="Tiny Logo" src="" alt="TinyMCE Logo" width="128" height="128" /></p>
  <h2 style="text-align: center;">TinyMCE Code Sample Plugin</h2>
  <p style="text-align: center;">Code Sample automatically applies color highlighting to PRE and CODE elements. Highlight some text, click the Code Sample button to see `code` applied to the text.</p>
  <h3 style="text-align: center;">How to insert a snippet</h3>
  <p style="text-align: center;">To create a snippet, insert the cursor on a new/empty line and click the Code Sample button in the toolbar. Add a code snippet to the modal, select the language and click OK to add the snippet to the page.</p>
  <p style="text-align: center">Note: this demo includes the Code plugin, which enables a <strong>code view</strong>. You can use this to see how Code Sample changes the HTML in the editable area.</p>
  selector: 'textarea#codesample',
  height: 500,
  plugins: 'codesample code',
  codesample_languages: [
    {text: 'HTML/XML', value: 'markup'},
    {text: 'JavaScript', value: 'javascript'},
    {text: 'CSS', value: 'css'},
    {text: 'PHP', value: 'php'},
    {text: 'Ruby', value: 'ruby'},
    {text: 'Python', value: 'python'},
    {text: 'Java', value: 'java'},
    {text: 'C', value: 'c'},
    {text: 'C#', value: 'csharp'},
    {text: 'C++', value: 'cpp'}
  toolbar: 'codesample code',
  content_style: 'body { font-family:Helvetica,Arial,sans-serif; font-size:14px }'



This feature is only available for TinyMCE 5.2 and later.

This configuration option allows a global Prism.js version to be used when highlighting code sample blocks, instead of using the Prism.js version bundled inside the codesample plugin. This allows for a custom version of Prism.js, including additional languages, to be used.

When using this option, ensure that Prism.js and any language add-ons are loaded on the site, alongside the TinyMCE script:

<script src="prism.js" data-manual></script>
<script src="tinymce.js"></script>

Type: Boolean

Default value: false

Possible values: true, false

Example: Using codesample_global_prismjs

  selector: 'textarea',
  plugins: 'codesample',
  toolbar: 'codesample',
  codesample_global_prismjs: true


This configuration option enables you to set a list of languages to be displayed in the languages drop down.

Example: Using codesample_languages

  selector: 'textarea',
  plugins: 'codesample',
  codesample_languages: [
    { text: 'HTML/XML', value: 'markup' },
    { text: 'JavaScript', value: 'javascript' },
    { text: 'CSS', value: 'css' },
    { text: 'PHP', value: 'php' },
    { text: 'Ruby', value: 'ruby' },
    { text: 'Python', value: 'python' },
    { text: 'Java', value: 'java' },
    { text: 'C', value: 'c' },
    { text: 'C#', value: 'csharp' },
    { text: 'C++', value: 'cpp' }
  toolbar: 'codesample'