FastDeepCloner is very fast portable library, This is a C# cross platform library that is used to deep clone objects, whether they are serializable or not. It intends to be much faster than the normal binary serialization method of deep cloning objects.
EntityWorker is an object-relation mapper(ORM) that enable .NET developers to work with relations data using objects. EntityWorker is an alternative to entityframwork. is more flexible and much faster than entity framework.
And it have support to multiple providers like mssql, sqlite and...