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SharpLab Alternatives
Similar projects and alternatives to SharpLab
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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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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Roslyn
The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
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referencesource
Source from the Microsoft .NET Reference Source that represent a subset of the .NET Framework
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proposal-record-tuple
Discontinued ECMAScript proposal for the Record and Tuple value types. | Stage 2: it will change!
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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Polly
Polly is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback in a fluent and thread-safe manner. From version 6.0.1, Polly targets .NET Standard 1.1 and 2.0+.
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ILSpy
.NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!
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F#
Discontinued Please file issues or pull requests here: https://github.com/dotnet/fsharp (by fsharp)
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AWS SDK
The official AWS SDK for .NET. For more information on the AWS SDK for .NET, see our web site:
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interactive
.NET Interactive combines the power of .NET with many other languages to create notebooks, REPLs, and embedded coding experiences. Share code, explore data, write, and learn across your apps in ways you couldn't before.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better SharpLab alternative or higher similarity.
SharpLab discussion
SharpLab reviews and mentions
Posts with mentions or reviews of SharpLab.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-10-09.
- C# Lowering
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An interesting observation on C# code coverage
Let's put the code into SharpLab.
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C# devs need to know about sharplab.io
It is not just practice that will help you master C#. Using tools to look under the hood will accelerate your understanding of various language features and helps you write better, more efficient code. Sharplab.io is one such tool that will help you to quickly learn and understand certain C# language features. You can use this tool to show you "lowered" C# code.
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JavaScript Structs
> I do likely have a biased perspective though, as I use newer C# features every day
I think that is kind of the point, though. Many of those newer features help with simplifying code and making it less boilerplate-y. To old programmers it is a simple code fix in the IDE to move from 30 lines of variable assignments in a switch to a 5 lines switch expression and they can learn that way. People new to the language typically won't even consider going the complicated route because they learned an easier way first.
I do concede that having people with less C# experience on a team where modern C# is used, there will be constructs that are not immediately obvious. SharpLab has an “Explain” mode which would be helpful in such cases, but I haven't seen anything like that in IDEs: https://sharplab.io/#v2:C4LgpgHgDgNghgSwHYBoAmIDUAfAAgBgAJcB...
However, as a personal anecdote, we've had a number of developers who have written mostly Java 1.4 (technical reasons) before switching to C# about a year ago. They took up the newer features and syntax almost without problems. Most questions I got from them were along the lines of “Can we also use this feature?” and not “What does this do?”.
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JVM/Java: Null-Restricted and Nullable Types
AFAIK you can still use it for older frameworks. The compiler embeds the attributes into the assembly when they're known to not be part of the runtime library [−3.7]. You can do the same with the various conditional nullability attributes.
[−3.7]: https://sharplab.io/#v2:EYLgHgbALAPgAgZgARwExIMJIN4FgBQSRKyc...
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Is .NET just miles ahead or am I delusional?
Do these all compile to the exact same thing?
https://sharplab.io/#v2:CYLg1APgAgTAjAWAFBQMwAJboMLoN7LpHoCW...
Yes, so you are right.
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Generating C# code programmatically
Recently, while creating some experimental C# source code generators (xafero/csharp-generators), I was just concatenating strings together. Like you do, you know, if things have to go very quickly. If you have a simple use case, use a formatted multi-line string or some template library like scriban. But I searched for a way to generate more and more complicated logic easily - like for example, adding raw SQL handler methods to my pre-generated DBSet-like classes for my ADO.NET experiment. You could now say: Use Roslyn and that's really fine if you look everything up in a website like SharpLab, which shows immediately the syntax tree of our C# code.
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The One Billion Row Challenge – .NET Edition
One results in MOVSX, the other in MOVZX [1]. The difference thus is sign/zero extension when moving to the larger register. However, they seem to perform pretty much identical if I'm reading Agner Fog's instruction tables correctly.
[1] https://sharplab.io/#v2:C4LghgzgtgPgAgJgIwFgBQcDMACR2DC2A3ut...
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Any programs or websites to practice programming?
If you don't have an IDE, you can use SharpLab.io or dotnet fiddle
- Por debaixo do capô: async/await e as mágicas do compilador csharp
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A note from our sponsor - SaaSHub
www.saashub.com | 25 Jun 2025
Stats
Basic SharpLab repo stats
111
2,865
7.9
7 months ago
ashmind/SharpLab is an open source project licensed under BSD 2-clause "Simplified" License which is an OSI approved license.
The primary programming language of SharpLab is C#.
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