.NET Community Vote: Best C# Libraries of 2024 Announced

.NET Community Chooses the Best Libraries of 2024: Voting Results

The .NET Foundation has announced the results of its annual developer vote. In 2024, the C# community selected the best open-source libraries that significantly simplify building modern applications on the .NET platform. In this overview, we have gathered the winners in key categories and explain why these tools deserve your attention.

Winners in Main Categories

• Entity Framework Core — the perennial leader in the "ORM and Data Access" category. The library continues to evolve actively: version 8.0 introduced support for JSON columns and improved performance for bulk operations. For .NET developers, this is the de facto standard.
• Avalonia UI — the best framework for cross-platform interfaces. Avalonia allows you to write desktop applications in C# for Windows, macOS, and Linux with a single codebase. In 2024, the project gained support for mobile platforms and WebAssembly.
• Serilog — winner in the "Logging" category. A flexible structured logging system with the ability to send logs to Elasticsearch, Seq, Azure, and other storage solutions. Serilog remains the number one choice for production systems.
• Dapper — a micro-ORM that outperformed heavier alternatives. Developers value Dapper for its speed and minimal performance impact. It is ideal for projects where full control over SQL queries is important.
• FluentValidation — the best library for data validation. It allows you to declaratively describe model validation rules, and integration with ASP.NET Core makes controller code cleaner and safer.

Why Are These Libraries Important for the .NET Ecosystem?

The .NET Foundation vote is not just a formality. It reflects the real needs of the community. All winners are mature projects with active maintenance, hundreds of contributors, and thousands of stars on GitHub. Using such libraries reduces development time, improves code quality, and decreases the number of bugs.

It is especially gratifying that in 2024, the community recognized tools for cross-platform development (Avalonia UI) and performance (Dapper). This confirms the trend: modern C# extends far beyond Windows and is becoming a universal language for backend, desktop, and even mobile.

How to Use These Libraries in Your Projects?

All listed packages are distributed via NuGet. Simply run:

• dotnet add package Serilog
• dotnet add package Dapper
• dotnet add package FluentValidation
• dotnet add package Avalonia

For Entity Framework Core, use the dotnet new webapi project template — it already includes EF Core by default.

If you are just starting to learn C# or want to deepen your knowledge, be sure to try these libraries in practice. They will help you write modern, maintainable code faster and with fewer errors. Stay tuned for updates on PythonLib — we will continue to cover the best tools in the .NET ecosystem.