Which tool assists in migrating on-premises web apps to Azure App Services?

The Azure App Service Migration Assistant is specifically designed for migrating on-premises web applications to Azure App Services. This tool provides a streamlined process for transitioning web apps to the Azure environment, offering assessments that help identify any compatibility issues with the Azure platform. It also supports various frameworks, making it versatile for different types of web applications.

By using this tool, administrators can analyze their existing web application and receive guided steps to facilitate the migration, ensuring that necessary configurations are correctly set up in Azure. This makes it particularly effective for developers and IT professionals who are focused on making their web applications cloud-ready while minimizing potential disruptions during the migration process.

On the other hand, while options like Azure Migration Tool and Azure Migrate do provide broad services for migration in Azure, they are not specifically focused on web applications, but rather on various types of workloads and resources. Azure Backup Service is primarily concerned with data protection and backup, rather than migration. Thus, the Azure App Service Migration Assistant stands out as the appropriate tool for this specific task.