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How to add an integration or HTML code

Learn how to add custom HTML or integrate a third-party widget.

static.intercomassets.comavatars337561square_128Meredith_Headshot-1462435312-1462487117-Apr-18-2024-02-53-22-9331-PM-modified

Written by: Meredith
Last updated: 11 Sep. 2025

   This feature requires the Basic subscription or above.
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You can use the B12 Editor to add third-party integrations or custom HTML directly to your site. This is helpful for embedding widgets, scripts, or code snippets that aren’t included in B12’s built-in tools.

Adding custom HTML or an integration

1. In the left sidebar, click website Website > pages Pages.

2. Select the page where you want the integration, then click Add section.

3. Click Add integration.


4. Choose your integration from the list, or select HTML if your integration isn’t listed.


5. Paste or write your code into the code box, then click Add integration.

6. Customize or remove the placeholder text in your new integration section.

7. Click Preview or Publish to check your integration live on your site.

Note:

  • When editing, you may see a placeholder warning message where your integration should appear. This message will not be visible on your published website.
  • Some third-party code may take a few minutes to load or may require additional setup on the provider’s side.