NoRM is a MongoDB driver for .Net designed to provide access to strongly/statically-typed documents and collections.
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Libraries fixed test builing Feb 25, 2010
NoRM note about the de-serialization bug. Jan 11, 2011
contrib/NorMan Added start of the mongo configuration console. Jun 5, 2010
LICENSE.txt changed license. Feb 23, 2010
NoRM - VS2010.sln Upgraded projects to VS2010, added 2010-specific solution file Apr 2, 2010
NoRM.Tests.xunit Added an xunit project for easy test execution. Mar 1, 2010
NoRM.sln Made 2008 the default sln file. Apr 5, 2010
README.markdown Removed link to project domain, which is no longer active. Feb 3, 2013


NoRM is no longer actively developed, please consider using the official 10gen driver in conjunction with FluentMongo

NoRM is a .Net library for connecting to the document-oriented database, MongoDB.

Please check the project website for more samples and a screencast:

If you have any questions or ideas, please use the Google Group to convey them (Hint: this will also be a good way to be notified when we get close to a release)

The API may change a bit over time, and there remain a few more features before we will cut a "Release" but the library is pretty stable, and has good unit test coverage for the core components. If you have ideas or requests, let us know - or fork them and share with us.

NoRM provides:

  • Strongly-typed interaction when querying and updating collections.
  • Improved interface to send common MongoDB commands (creating indices, getting all the existing dbs and collections, etc.).
  • Ultra-fast de/serialization of BSON to .Net CLR types and back.
  • Fluent mappings to specify the property names and characteristics at runtime, rather than attributes.
  • An optional fluent configuration for mapping types and properties to different names and collections in the DB.
  • LINQ-to-Mongo
  • NoRM will work under both Mono & .Net

It would also be useful to read what we have on the wiki.

  • The NoRM.dll can connect to MongoDB, this is the workhorse of NoRM, and all you really need to get started.
  • The NoRM.Tests.dll are nunit tests for NoRM, we are much more likely to accept patches that have corresponding tests.