Microsoft Sql Server 2019 Localdb (2025)

Fully compatible with T-SQL, SSDT (SQL Server Data Tools), Entity Framework, and most database APIs (ADO.NET, ODBC, etc.). You can develop against LocalDB and deploy to full SQL Server without code changes.

is a lightweight, zero-configuration version of the SQL Server Express Database Engine specifically designed for software developers. It provides the full programmability of the SQL Server engine while running as a background process rather than a persistent Windows service, making it an ideal choice for local application development and testing. Core Features and Capabilities microsoft sql server 2019 localdb