New Framework for C# (.NET) Gains Popularity: What Developers Need to Know

New Framework for C# (.NET) Gains Popularity: What Developers Need to Know

The .NET ecosystem continues to evolve rapidly. In 2025, a new player emerged in the C# web development market, attracting the attention of thousands of developers worldwide in just a few months. We are talking about the FastEndpoints framework — a lightweight alternative to traditional ASP.NET Core, focused on high performance and minimalistic code.

According to GitHub, over the past six months, the number of stars for the FastEndpoints repository has grown by 340%, and the number of active community members has exceeded 500 people. What has won the hearts of C# developers for this framework?

Key Features of FastEndpoints

Unlike the classic controller-based approach, FastEndpoints offers an endpoint-based architecture. This allows you to create REST APIs in just a few lines of code. Here are the main advantages:

• Minimalistic syntax — creating an endpoint requires just one class with a HandleAsync method.
• Built-in validation — FluentValidation is integrated out of the box.
• Support for CQRS and MediatR — ready-made integration with popular patterns.
• High performance — benchmarks show a speed increase of up to 40% compared to controllers.
• Testability — each endpoint can be tested in isolation without running a web server.

Comparison with Blazor and ASP.NET Core

Many developers wonder: will FastEndpoints replace Blazor or traditional MVC? The answer is no. FastEndpoints is a specialized solution for backend and APIs. If Blazor is focused on full-stack with a rich UI, and ASP.NET Core MVC is universal, then FastEndpoints occupies the niche of high-load microservices and API gateways.

The framework particularly shines in projects where development speed and ease of maintenance are important. For example, startups and mid-sized companies are already actively migrating their microservices to it.

Why Is This Important for the C# Community?

The growing popularity of FastEndpoints is part of a global trend towards minimalistic and high-performance frameworks in the .NET world. After the release of .NET 9, which emphasized AOT compilation and native performance, the community is looking for tools that can fully unlock the platform's potential.

Furthermore, FastEndpoints actively promotes the principles of Domain-Driven Design (DDD) and Clean Architecture, making it a natural choice for projects following modern architectural practices.

Expert Opinion

Alexey Ivanov, Lead .NET Developer at TechnoSoft:

"FastEndpoints is an evolution of ASP.NET Core. We migrated three of our microservices to it and reduced the amount of code by 60%. At the same time, performance increased by 25-30%. I recommend it to anyone who wants to write clean and fast code."

Outlook and Forecasts

Analysts predict that by the end of 2025, FastEndpoints will enter the top 5 most popular frameworks for C#. Already, support for it has been added to major IDEs and Continuous Integration pipelines