SQL Server Express LocalDB

SQL Server Express LocalDB

LocalDB is a lightweight version of the SQL Server Express Database Engine created specifically for developers. It starts on demand and runs in user mode, so there is no complex configuration. By default, LocalDB database creates “*.mdf” files in the C:/Users/ directory.

We support LocalDB directly in our products! You don't need separate drivers and can immediately connect to your database.

Developers for whom LocalDB is enough don't need to install and manage full instance of SQL Server Express. It offers T-SQL like standard SQL Server does and is a good embedded database. It doesn't create Windows services at all, LocalDB processes are started and stopped as needed.

SQL Express LocalDB can be considered as a next logical step from SQL Server Compact (SQLCE) when you need a truly powerful embedded database.

Full Convert Standard Full Convert Pro

We support SQL Server Express LocalDB directly. No additional drivers are required.

SQL Server Express LocalDB data types we support


bigint, int, smallint, tinyint


decimal (numeric), double, float (real), money, smallmoney


char, nchar, ntext, nvarchar (sysname), nvarchar(max), text, varchar, varchar(max)


binary, bit, timestamp, varbinary


date, datetime, datetime2, datetimeoffset, smalldatetime, time

Large objects

geography, geometry, image, ntext, nvarchar(max), text, varbinary(max), varchar(max), xml


dynamicobject, hierarchyid, sql_variant, table, uniqueidentifier

Export your SQL Server Express LocalDB database

It may make sense to migrate your data away from SQL Server Express LocalDB. You may want to do it permanently or just need to share your tables with a collague in a different format.

We will copy all your tables with their data and apply indexing and relationships exactly as they are in your current SQL Server Express LocalDB database. In a nutshell, you get exactly the same database in another database engine. Each time you run the migration, we will copy all the tables again. Of course, we have a built-in scheduler, so you can run this overnight and have a fresh database copy in the morning.

Take a look at the quick tutorials below to see how it's done using Full Convert.

Export SQL Server Express LocalDB to:

Import data into your SQL Server Express LocalDB database

If you want to import data on a regular basis and do not want to recreate the whole target database from scratch every time, but rather do tiny targeted sync of only changes since the last run, use Full Convert Pro.

Take a look at the quick tutorials below to see how it's done using Full Convert.

Import data into SQL Server Express LocalDB from: