Prepare Visualforce Pages for Lightning Experience with the Lightning Experience Configuration Converter (Beta)
Where: This tool is available in Lightning Experience and Salesforce Classic in Enterprise, Performance, Unlimited, and Developer editions.
When:This feature isavailable in January 2019.
Who: The Visualforce Pages feature requires the Customize Application and Modify All Data permissions.
How: The Lightning Experience Configuration Converter is a standalone tool that lives outside of Salesforce. We recommend that you run it in a sandbox or Developer org first, and then migrate your changes to your production org. To get started, visit https://lightning-configuration.salesforce.com/ and log in with your org credentials.