Azure migration, unfortunately, isn't an automated tool irrelevant of what any docs say. Given the vast variety of apps there is no way to really come up with a tool that could handle everything. Hence guidance is more common. Here's how you can get to the current migration "tools".
- Go to the page start page.
- I strongly recommend you log in on this page as a lot of Azure pages don't work unless you're logged in otherwise they redirect.
- On the start page click
Migrate to Azure App Service
. It goes here but takes a while. - Towards the top is a link to
Azure Migrate
. That is probably the tool you're looking for. Note that database migrations are a separate tool, I believe, and the link is at the bottom of the same page.