> ## Documentation Index > Fetch the complete documentation index at: https://docs.saasio.io/llms.txt > Use this file to discover all available pages before exploring further. # Injecting Custom Scripts > Learn how to use the Scripts tab to inject third-party JavaScript snippets for analytics, live chat widgets, and other services. *** The **Scripts** tab is an advanced feature that allows you to inject custom JavaScript snippets directly into the `` or `` tags of your application's pages. This feature is powerful but should be used with care, as poorly written or untrustworthy scripts can negatively affect your application's performance and security. **Primary Use Case:** This feature is intended for integrating trusted, third-party services that require you to paste a script tag into your site. Common examples include: - Analytics tools (like Hotjar or Mixpanel) - Live chat widgets (like Intercom or Crisp) - Advertising or marketing tracking pixels *** ## How to Add a Script In the top navigation bar, click the **Data** tab, then select the `Scripts` sub-tab. Click to create a new script. You will be presented with a text editor and a location setting. Carefully paste the JavaScript code provided by the third-party service into the text editor. Select whether the script should be injected into the **``** or the **``** of your page. Always follow the instructions provided by the third-party service. * **``:** Use for scripts that need to load before your page content is visible (e.g., analytics, font loaders, or style modifiers). * **``:** Use for scripts that can load after your page content is visible (e.g., chat widgets or other non-essential tools). Save your script. It will now be included on every page of your live, published application.