OopFactory.X12 (nuget): This is an open source .NET C# implementation of an X12 Parser.        The parser allows for a specification of any X12 transaction set to create a generic X12 xml representation of the hierarchical data contained within the X12 document.        No database integration is required by design, though  you can use the ImportX12 app to parse into a SQL Server database and skip the XML.
Keywords: X12|Parser