> For the complete documentation index, see [llms.txt](https://cranford-tech.gitbook.io/charles/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cranford-tech.gitbook.io/charles/key-features/open-url-in-sidebar-modal.md).

# Open URL in sidebar modal

Use the action `Charles: Open iFrame in sidebar` workflow action and give it a URL to open and width in px or %: Start the URL with `https:://…`

<div align="left"><figure><img src="https://1746625412-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FR8XSg57nbIyYLBX9iJLb%2Fuploads%2FZ3QeeEU6LtfVESkpaI2X%2Fimage.png?alt=media&amp;token=f673263e-71dc-4f05-99e2-a7e8d0c65208" alt=""><figcaption></figcaption></figure></div>