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Csharplang Alternatives
Similar projects and alternatives to csharplang
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InfluxDB
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ASP.NET Core
ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.
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Avalonia
Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The most popular .NET UI client technology
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Introducing .NET Multi-platform App UI (MAUI)
.NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.
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SaaSHub
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Roslyn
The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
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sdk
Core functionality needed to create .NET Core projects, that is shared between Visual Studio and CLI (by dotnet)
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runtimelab
This repo is for experimentation and exploring new ideas that may or may not make it into the main dotnet/runtime repo.
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magmide
A dependently-typed proof language intended to make provably correct bare metal code possible for working software engineers.
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dotnet
This repo is the official home of .NET on GitHub. It's a great starting point to find many .NET OSS projects from Microsoft and the community, including many that are part of the .NET Foundation.
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SaaSHub
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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better csharplang alternative or higher similarity.
csharplang discussion
csharplang reviews and mentions
Posts with mentions or reviews of csharplang.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-05-20.
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"ZLinq", a Zero-Allocation LINQ Library for .NET
Sadly expression trees got out of love in modern .NET and it remains to be seen how much they will ever improve them.
https://github.com/dotnet/csharplang/discussions/158
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Why Tracebit is written in C#
Here's the language proposal for those that are interested.
https://github.com/dotnet/csharplang/issues/8928
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The Untouched Goldmine of F#
C# has a much awaited and active proposal to add DUs to C# so I suspect C# will also support this once live (and continue its legacy of plucking great features from F#).
https://github.com/dotnet/csharplang/blob/main/proposals/Typ...
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The Monad Invasion - Part 3: Railway-Oriented Programming
We cannot blame Monads or ROP for this issue - it is a language limitation. In comparison, this is where a language like F# shines, as it allows us to define a discriminated union type that can carry multiple types of failures. Still, hope is possible - discriminated unions will eventually come to C#.
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Sets, Types and Type Checking
disjoint union vs union.
Scala3 is the only programming language to implement both AFAIK.
C# has a proposal to add both unions and disjoint unions: https://github.com/dotnet/csharplang/blob/main/proposals/Typ...
OCaml has polymorphic variants which are open disjoint unions.
Kotlin is looking to add union types for errors: https://youtrack.jetbrains.com/issue/KT-68296/Union-Types-fo...
I believe Java's checked exceptions behave somewhat like union types.
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A comparison of Rust's borrow checker to the one in C#
There is a runtime (not C#) feature that has been added that is relevant to the article: ref fields in structs. Before these, only certain runtime-blessed types like Span could contain refs directly.
In case anyone is interested, here is the spec about refs in structs and other lifetime features mentioned in the article:
https://github.com/dotnet/csharplang/blob/main/proposals/csh...
And here is the big list of ways .NET differs from the publish ECMA spec. Some of these differences represent new runtime features.
https://github.com/dotnet/runtime/blob/main/docs/design/spec...
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Net 9.0 LINQ Performance Improvements
7 years ago: https://github.com/dotnet/csharplang/issues/1060
3 years ago: https://github.com/dotnet/csharplang/blob/main/meetings/2021...
I've given up submitting to csharplang now. It seemed like a positive when it was first open-sourced, but the proposals/issues are often just circular discussions that go nowhere. It doesn't feel (at least from the outside) that any proposal by a non-MS employee would make it thru the process unless MS needed it themselves. Which is what I was alluding to in my original post.
I may well be wrong and maybe some proposals have made it through, but it feels like an illusion of community collaboration rather than actual community collaboration imho.
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Why is F# code so robust and reliable?
https://github.com/dotnet/csharplang/blob/main/proposals/Typ...
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Discriminated unions in 2024
This means we rely on switch expressions rather than a Match function with lambdas for each case. Unfortunately, unlike lambdas, switch expressions don't allow blocks of code. However, we can emulate them like this:
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.NET Digest #3
Type Unions for C#
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A note from our sponsor - SaaSHub
www.saashub.com | 23 May 2025
Stats
Basic csharplang repo stats
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4 days ago
The primary programming language of csharplang is C#.
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