Zeplin extensions are JavaScript modules that generate code snippets from various design elements. All the built-in code snippets in Zeplin are implemented as extensions using the same infrastructure.

You can explore all the extensions built by developers from the community and the Zeplin crew here: https://extensions.zeplin.io/.

To add one of those extensions to your projects, click the “Add to Zeplin” button and select the styleguides in which you need the extension.

You can see the list of extensions in your styleguide under the "Extensions" window, from the right panel of your styleguide's About page.

From this window, you can change the preferences for each extension or enable/disable them: