Azure SQL is described as 'Family of managed, secure, and intelligent products that use the SQL Server database engine in the Azure cloud. Azure SQL is built upon the familiar SQL Server engine, so you can migrate applications with ease and continue to use the tools, languages, and' and is an app in the development category. There are more than 10 alternatives to Azure SQL for a variety of platforms, including Windows, Web-based, Linux, Self-Hosted and Mac apps. The best Azure SQL alternative is SQLite, which is both free and Open Source. Other great apps like Azure SQL are PostgreSQL, MongoDB, Microsoft SQL Server and OVH.