Take advantage of the same powerful database engine in a version tailored for redistribution and embedding. SQL Server Express includes 10GB of storage per database, easy backup and restore to Microsoft Azure functionality, and compatibility with all editions of SQL Server and Microsoft Azure SQL Database so you can develop and deploy with confidence.
This package contains the core SQL Server database along with the tools to manage SQL Server instances including SQL Server Express, LocalDB, and SQL Azure. If you need Reporting Services or Full text search, use SQL Server Express with Advanced Services.
This package does not contain the SQL Server database, only the tools to manage SQL Server instances, including LocalDB, SQL Express, SQL Azure, etc. Use this if you already have the SQL Server database and only need the management tools.
Do you need to embed SQL Server Express into an application? LocalDB is a lightweight version of Express that has all its programmability features yet runs in user mode and has a fast, zero-configuration installation. No management tools are included.
Experience the full feature set of SQL Server Express. This package contains the database engine, Express Tools, Reporting Services, Full Text Search, management tools, and all the components of SQL Server Express. This package is a larger size and will take longer to download.
Do you already have the tools and just need the database server? This is the core Express database server. Use this if you need to accept remote connections or administer remotely and do not need the tools or advanced services.