Npgsql

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.

Software · npgsql.org

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What Npgsql’s own pages say

What it says it doesNpgsql 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. npgsql.org
Free planYes npgsql.org
Open sourceYes npgsql.org
LicenseNpgsql is licensed under the PostgreSQL License npgsql.org

Each value is a quote AirStack found on the product’s own pages, read 2026-11-05. A missing field means AirStack has not found it on its pages.