Lightweight multi-platform ORM for mobile, desktop and servers. Support for Sqlite is built in for mobile and UWP platforms. For other database platforms and for Sqlite on Win32, a data provider is required to use this library. Providers for Sqlite (Win32), SQL Server and MySql are available on Nuget.

orm, postgres, iridium, sql
Install-Package iridium.db.postgres -Version



Portable lightweight .NET ORM for mobile, desktop and servers

Iridium is a .NET ORM that can be used on any .NET platform, including Xamarin and .NET Core on Linux and OSX.


  • Works on any .NET platform, including Xamarin and .NET Core on Linux and OSX.
  • Lightweight (assembly is < 140k), very fast and with zero external dependencies
  • Full LINQ expression support, including complex expressions involving relations
  • Seamless support for relations (many-to-one and one-to-many)
  • Uses POCO classes (no base class or interface required)
  • Works with any storage backend, including SQL databases and non-relational databases, in-memory storage and flat files (Json/Xml)
  • Built-in support for many databases. Adding other database providers is extremely easy.
    • Sqlite
    • SQL Server
    • MySql
    • Postgres

Full documentation and additional information: