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Npgsql - .NET Access to PostgreSQL


Npgsql is an open source ADO.NET Data Provider for PostgreSQL, it allows programs written in C#, Visual Basic, F# to access the PostgreSQL database server. It is implemented in 100% C# code, is free and is open source.

In addition, providers have been written for Entity Framework Core and for Entity Framework 6.x.

Getting Help

The best way to get help for Npgsql is to post a question to Stack Overflow and tag it with the npsgql tag. If you think you've encountered a bug or want to request a feature, open an issue in the appropriate project's github repository.


Npgsql is licensed under the PostgreSQL License, a liberal OSI-approved open source license.


A special thanks to Rowan Miller, Scott Hanselman and Martin Woodward at Microsoft for generously donating an Azure subscription for Npgsql’s continuous integration platform.


Current active contributors to Npgsql are:

  • Shay Rojansky
  • Emil Lenngren
  • Francisco Figueiredo Jr.
  • Kenji Uno

Past contributors to Npgsql:

  • Jon Asher
  • Josh Cooley
  • Federico Di Gregorio
  • Jon Hanna
  • Chris Morgan
  • Dave Page
  • Glen Parker
  • Brar Piening
  • Hiroshi Saito

Developer Resources

For information on development see this page.