Preview an app file in ServiceNow Studio

  • Release version: Australia
  • Updated May 28, 2026
  • 1 minute to read

    • Preview app files in ServiceNow Studio before publishing to confirm that the file looks and functions as expected. Only files with a user interface support preview.

    Before you begin

    Role required: admin or delegated_developer

    About this task

    Use preview to verify how an app file looks and behaves before it reaches end users. Files with preview capabilities open directly in preview mode in ServiceNow Studio, bypassing the record view.

    Begin or continue a conversation with Build Agent to edit previewed files through a conversational interaction. For more information, see Use Build Agent.

    Procedure

    1. Navigate to All > App Engine > ServiceNow Studio.
    2. Preview files from the App details page or from within an open file.
      OptionDescription
      Preview from App details
      1. Open an application in the canvas.
      2. Next to the file you want to preview, select the more options icon , and select Preview to open the file in preview mode.

        Select the Preview button.
      Preview from an open file Files with preview capabilities automatically open in preview mode. After you close the preview, reopen the preview by selecting Preview in the file record.

    Result

    Review the file for layout, functionality, and content errors. Return to the canvas to make corrections, then reopen the preview to verify changes.