Are C# and .NET Worth Learning in 2026?
.NET, pronounced and sometimes written as dotnet, is a software development framework created by Microsoft. What started as a Windows-only framework for developing desktop and web forms applications has evolved into a much bigger ecosystem.
Over the decades, it has become a framework for writing desktop, web, or console applications that are high-performant, cross-platform, minimally sized, and dynamically compiled or machine-native. With support from a large company, and a very healthy community of developers, .NET has grown into a very useful tool that (spoiler) we believe is worth learning, and here’s why.
Works Across Multiple Platforms
Compiled .NET code is run by the Common Language Runtime (CLR). This abstracts the compiled code from the machine running it, allowing the CLR to run platform-specific instructions. All of this means .NET code is cross-platform. Today it has major support for Windows, Linux, macOS, Android, iOS, and WebAssembly. Other platforms are supported by vendors like Tizen, or video game engines like Godot, Unity, and Unreal Engine.
There’s even support for small, embedded hardware platforms that don’t have an operating system like the Raspberry Pi Pico and ESP32 boards. So you can make LEDs blink whenever someone presses a real, physical button.
Amazing Tooling
The .NET platform was built with tooling in mind, and it shows. Support from fully featured IDEs like Visual Studio, JetBrains Rider, and Visual Studio Code makes it easy to start typing code and keep typing code. The tooling makes it trivial to refactor, debug, profile, and test. Even if you prefer to type out your code in Vim or Emacs, you can use the dotnet CLI to develop without ever taking your hands off the keyboard.
The C# language even allows you to customize your development flow with features like Roslyn Analyzers and C# Source Generators. These let you create custom analysis tools for code scanning and verification, or for generating source code at compile time from code you create. You can easily share these components with other people in the same ecosystem through .NET’s dependency management system, NuGet. Many members of the .NET community have adopted these features to make it easier to use their open source libraries and help push developers into the pit of success.
Every Kind of Application Type
.NET can be used to create a wide range of applications. Fully featured Websites, backend web APIs, rich client desktop applications, mobile apps, background services, high-performance Web Assembly (WASM) sites, Internet of Things (IoT) appliances, AI tools and chatbots, fun and engaging video games, and shared code libraries. I could go on, but you get the idea. Whatever application you want to make, .NET can probably make it.
It Runs Doom
Because of course it runs Doom. Everything runs Doom. It’s an important point because that means a vibrant .NET community exists. It’s great to say we can create any type of application we want. As developers, we want to know that other people want to use those same tools. A healthy community means we have other people to talk to and bounce ideas off. And it’s even better when we know they’ve used the same tools for things the creators couldn’t envision. If all we wanted was “boring” enterprise applications, we could just use PowerPoint.
Supported By A Gigantic Vendor
If you haven’t heard of Microsoft before, it’s a large corporation known for developing the Xbox, Windows 7, and Bing. Microsoft uses it for its own software, for internal services, and the software it sells to customers. Microsoft Bing runs on .NET and benefits from yearly performance improvements. And they even keep a list of customers who use it.
.NET gets a major version update every November, with security patches every second Tuesday of the month. Microsoft employees develop it in the open on GitHub, with community contributions. Multiple preview versions are released throughout the year before the major release.
Observability
.NET has fully embraced making applications observable. By adopting industry standards like cloud-native OpenTelemetry (OTel), developers can gain deep insights into application flow and performance, with system traces and metrics across distributed systems. Making it much easier than in the past to monitor and scale complex applications. Of course, plaintext logging hasn’t gone anywhere and is fully supported by .NET and other open-source libraries.
Aspire includes a dashboard that makes viewing your application telemetry trivial when developing locally. Whether you’re observing plaintext logs or OTel traces and metrics, you can get up and running in no time.
AI & Emerging Standards
As AI becomes a core component of software, .NET is leading with AI-driven development tools and libraries. It even supports emerging integration standards like the Model Context Protocol (MCP), for a unified way to connect AI models with data sources and tools, ensuring your .NET applications are ready for the next wave of intelligent computing.
Let Your Nerd Flag Fly
When we talked about .NET being an abstract platform, we meant that it lets you write code that runs cross-platform. It has a garbage collector to save you from the hassle of keeping track of memory yourself. But if you really want to, you can manage that memory all by yourself. .NET will let you access low-level bits like direct memory pointers to call native assemblies written in languages like C, C++, or Rust. You can even use Ahead of Time (AoT) compilation to compile your code to run on specific platforms with a stripped-down version of the CLR for performance and binary-size benefits.
If you’re a real big performance nerd, and get a twitch every time you see an opportunity to shave off a millisecond of processing time, Microsoft caters to you. Every major release of .NET includes a huge blog post with all of the performance work that went into making .NET faster than ever. Posts like this one for the .NET 10 release.
Are C# and .NET Worth Learning in DateTime.UtcNow.Year?
At Duende Software, our official answer is: Yes, .NET is worth learning as a useful technology now and in the future. We touched on every major consideration a developer would think about to ensure the software we write can continue to be developed far into the future. With room to grow and with quality.
We hope you found this post enlightening. If there are other reasons you think C# and .NET are worth learning, let us know in the comments. And while you’re here, please take a moment to explore our range of security products and join our community in our public discussions.
