Npgsql the .NET PostgreSQL provider

Npgsql is a powerful, open-source ADO.NET data provider built specifically for PostgreSQL. It delivers truly native database connectivity for .NET applications, offering exceptional performance, low latency, and full compliance with PostgreSQL standards. With advanced features, active community support, and seamless integration across modern .

Key Features

Native Performance

Delivers fast, low-latency database operations using optimized, fully native PostgreSQL communication protocols.

Standards Compliance

Strictly follows .NET and PostgreSQL standards, ensuring predictable behavior and long-term application stability.

Open Source

Community-driven open-source project with transparent development, frequent updates, and strong contributor ecosystem.

Async Support

Provides robust asynchronous APIs enabling scalable applications and efficient resource usage under heavy workloads.

Advanced Features

Supports PostgreSQL-specific features like JSON, arrays, notifications, replication, and custom data types.

Secure Connectivity

Includes SSL encryption, authentication mechanisms, and safe parameter handling to prevent SQL injection.

What is Npgsql ?

Npgsql is a battle-tested, high-performance .NET data provider designed specifically for PostgreSQL. It enables .NET applications to seamlessly connect to PostgreSQL servers, execute complex queries, and manage data efficiently using full ADO.NET patterns while also extending beyond them with modern, PostgreSQL-specific capabilities.

Npgsql in the ADO.NET ecosystem

Npgsql fully implements core ADO.NET components such as DbProviderFactory, DbConnection, and DbCommand, ensuring seamless compatibility with standard .NET data access patterns. Alongside these familiar abstractions, it also exposes powerful PostgreSQL-specific APIs, enabling developers to leverage advanced database features beyond the default ADO.NET capabilities.

Clean & Intuitive API

Npgsql’s API follows .NET conventions, making it natural and easy to use for any C# developer.

				
					Parameterized Queries
await using var cmd = new NpgsqlCommand(
    @"INSERT INTO products (name, price)
      VALUES (@name, @price)
      RETURNING id", conn
);
cmd.Parameters.AddWithValue("name", "Widget");
cmd.Parameters.AddWithValue("price", 29.99m);

var id = await cmd.ExecuteScalarAsync();

				
					JSON Support
// Write JSON directly
cmd.Parameters.Add(new NpgsqlParameter {
    ParameterName = "data",
    Value = new { Name = "Npgsql", Version = 8 },
    DataTypeName = "jsonb"
});

// Read JSON
var json = reader.GetFieldValue<JsonDocument>(0);

How Npgsql Works

Connection Initialization

Your application creates a connection string containing database credentials. Npgsql uses this to securely connect to the PostgreSQL server.

Query Execution

Once connected, Npgsql sends SQL queries or commands directly to PostgreSQL using its native protocol, ensuring high performance and reliability.

Data Processing

PostgreSQL processes the request and returns results. Npgsql efficiently maps this data into .NET-friendly objects like DataTables, DataReaders, or strongly typed models.

PostgreSQL-Specific Features

Beyond standard ADO.NET operations, Npgsql supports advanced PostgreSQL features such as JSON, arrays, enums, bulk copy, and asynchronous queries.

Secure & Optimized Communication

Npgsql manages connection pooling, parameterized queries, and SSL encryption to deliver fast, secure, and scalable database interactions.

Getting Started

Npgsql lets you get up and running with PostgreSQL in just a few minutes. Simply install the NuGet package, add your PostgreSQL connection string, and you’re ready to go.

Join the Community

Npgsql is driven by an active open-source community. Get help, contribute code, report issues, and connect with fellow .NET and PostgreSQL developers.

GitHub

View source code, report issues, and contribute to Npgsql on GitHub.

Discussions

Join our community discussions on GitHub to ask questions and share knowledge.

Stack Overflow

Get help from the community by asking questions tagged with npgsql on Stack Overflow.

Blazing Performance

Npgsql leverages the PostgreSQL binary wire protocol, connection multiplexing, and prepared statement caching to deliver industry-leading performance for .NET applications.

Connection Pool Open

Simple Query

Bulk Insert (10K rows)

COPY Binary (10K rows)

Cross-Platform Support

Npgsql runs everywhere .NET runs. Deploy your PostgreSQL-powered applications on any platform with confidence.

.NET 8 / .NET 9

Full support for the latest .NET versions

.NET Framework 4.6.2+

Legacy .NET Framework compatibility

Windows

Native Windows support with all features

Linux

Production-ready on all major Linux distributions

macOS

Full support on Apple Silicon and Intel Macs

Docker / Kubernetes

Cloud-native containerized deployments

Download Npgsql

Getting started with Npgsql is fast and simple. You can download and install Npgsql directly from NuGet and begin connecting your .NET applications to PostgreSQL within minutes.

Npgsql is fully open-source and works seamlessly with modern .NET versions. It’s actively maintained, well-documented, and trusted by thousands of developers worldwide for both small projects and enterprise applications.

How to Download:

Open NuGet Package Manager in Visual Studio
Search for Npgsql
Click Install and add it to your project

Once installed, configure your PostgreSQL connection string and start executing queries, managing transactions, and working with advanced PostgreSQL features right away.

What People Say

Npgsql has been incredibly reliable for our PostgreSQL-based applications. The performance is excellent, and the setup is straightforward, even for complex systems.

Sarah Thompson

Lead .NET Engineer

I love how easily Npgsql integrates with .NET. Advanced PostgreSQL features work out of the box, and the documentation makes development smooth and efficient.

Emily Rodriguez

Backend Developer

Npgsql plays a key role in our high-scale applications. Its stability, speed, and active community support give us confidence in long-term projects.

Priya Verma

Software Architect

Frequently Asked Questions

What is Npgsql?

Npgsql is an open-source .NET data provider that enables fast, reliable communication with PostgreSQL databases.

Is Npgsql free?

Yes, Npgsql is completely free and open-source, released under the MIT license for commercial and personal use.

Who uses Npgsql?

Thousands of developers and companies use Npgsql in production for web apps, APIs, and enterprise systems.

Is Npgsql production-ready?

Absolutely, Npgsql is battle-tested, stable, and trusted in high-traffic, mission-critical production environments worldwide.

Does Npgsql support .NET Core?

Yes, Npgsql fully supports .NET Core, .NET 6+, and modern cross-platform .NET applications.

Is Npgsql actively maintained?

Yes, Npgsql is actively maintained by a strong open-source community and contributors from the PostgreSQL ecosystem.

How do I install Npgsql?

You can install Npgsql easily via NuGet Package Manager in Visual Studio or using the dotnet CLI.

Is setup difficult?

No, setup is simple and quick, requiring only installation and a valid PostgreSQL connection string.

Does it require extra drivers?

No additional drivers are required; Npgsql works directly with PostgreSQL using native protocols.

Can I use it in existing projects?

Yes, Npgsql can be added to existing .NET projects without major changes or refactoring.

Is configuration customizable?

Yes, connection pooling, timeouts, SSL, and performance settings can be easily customized.

Does it support connection pooling?

Yes, Npgsql includes built-in, high-performance connection pooling enabled by default.

Does Npgsql support PostgreSQL features?

Yes, it supports advanced PostgreSQL features like JSON, arrays, enums, COPY, and full-text search.

Can I run raw SQL queries?

Yes, Npgsql allows executing raw SQL queries, stored procedures, and parameterized commands easily.

Is async programming supported?

Yes, Npgsql fully supports async and await patterns for scalable, non-blocking database operations.

Does it work with Entity Framework?

Yes, Npgsql integrates seamlessly with Entity Framework Core using the official PostgreSQL provider.

Is bulk data supported?

Yes, Npgsql offers high-speed bulk inserts using PostgreSQL COPY for massive performance gains.

Does it support transactions?

Yes, full transaction support is available, including nested transactions and savepoints.

Is Npgsql fast?

Yes, Npgsql is highly optimized and known for excellent performance and low-latency database operations.

How does it handle large data?

It efficiently manages large datasets using streaming, batching, and binary data transfer.

Is it suitable for high traffic apps?

Yes, Npgsql is widely used in high-traffic APIs and applications requiring stability and speed.

Does it reduce connection overhead?

Yes, built-in connection pooling significantly reduces overhead and improves application scalability.

Is it memory efficient?

Yes, Npgsql is designed to minimize memory usage while handling complex and heavy workloads.

Can it scale with my app?

Absolutely, Npgsql scales well from small projects to enterprise-level distributed systems.

Npgsql – .NET PostgreSQL Driver for Developers

Npgsql is the official .NET data provider for PostgreSQL. Fast, reliable, and easy to integrate with your .NET applications.

Price: Free

Price Currency: $

Operating System: Windows

Application Category: Software, Library

Editor's Rating:
4.7