Libraries should be automatically included just like an IDE does.

For example: For some of the functions I have to:
"Imports Microsoft.VisualBasic" <--- example functions: Ubound, Lbound

And if i want to use regex then i have to include this:
"Imports System.Text.RegularExpressions"

There should be an option to automatically include all imports and remove unused imports.

Sometimes I need to check a code that works with local timezone which should be different from UTC. It would be great to have an ability to specify timezone in that cases. Thank you!

Some of us who have joined the "dark side" of the force enjoy finding at least minimal Vi emulation modes, with most common edit operations available. However, a more complete version of Vi emulation would be nice, but adding regex would be drop-in, right?

I would like to embed the Widget on my and to preform functions on it such as load a snippet to the editor or append and remove lines.
This would allow me to create tutorials like tryfsharp.org

The following paste is an example of code that compiles in visual studio that does not appear to be supported by dotnetfiddle: https://dotnetfiddle.net/224Hvk

I was just making a quick draft to make sure I understood the way this kind of assignment behaved to find it wouldn't compile on dotnetfiddle

Why is the list limited to 10 fiddles? We should be able to see all of them, or at least have a page size option.

Could you add support for snippets? E.g. typing 'ctor' and pressing 'Tab' key 2 times should generate a class constructor just as it does in Visual Studio.
For some developers it could increase productivity.

please! Make app for windows phone. It will be wonderfull!

Allow for a teacher/student structure whereby a teacher can have access to students' files and create tutorials on .NET Academy visible to only students.

Given that MS have stopped supporting 4.5.1 and dotnet core has been released, it would be a good time to update the examples.

I would love to use .NET Fiddle in the documentation pages for my OSS projects, but I can't install the packages (I think because of the Framework verisons)

Some of my code uses System.Windows.Forms.BindingContext (i.e. non UI code) and I want to reference it dotnetfiddle.net

Unfortunately I can't write using System.Windows.Forms; as I get the error Compilation error (line 2, col 22): The type or namespace name 'Forms' does not exist in the namespace 'System.Windows' (are you missing an assembly reference?)

I'd like to have an option do not use "Console.WriteLine"...

Instead of

using System;
using System.Globalization;
using System.Text.RegularExpressions;

public class Program
{

public static void Main()

{

    Console.WriteLine("Hello World");

    Console.WriteLine(DateTime.Now.ToString("d", CultureInfo.CreateSpecificCulture("es-CL")));

    Console.WriteLine(Regex.Replace("tot{o}", "{O}", "*", RegexOptions.IgnoreCase));

}

}

use simplified code like:

using System;
using System.Globalization;
using System.Text.RegularExpressions;

?"Hello World"
?DateTime.Now.ToString("d", CultureInfo.CreateSpecificCulture("es-CL")))

?Regex.Replace("tot{o}", "{O}", "*", RegexOptions.IgnoreCase)

Add Web Api 2.2 to list of project type

Please allow users to have default templates and custom usings on loading.
Different users use different nuget packages and namespaces and want to have them declared when launching the website instead of having to add them manually each time anew.

Support for System.ServiceModel would be very helpful.

There exists five redundant horizontal tabs 0x09 at the second line of all C# templates (Framework, Core, and Roslyn). They have existed for at least a year now.
I am hoping they can be removed.
Thanks.

So that we can create asynchronous sample in DotNetFiddle