C# — Shuffle a String in One Line

 

Need to randomly shuffle the characters of a string? Most people would loop and swap, but here’s a LINQ one-liner:

using System;
using System.Linq;

class Program
{
    static void Main()
    {
        string text = "HELLOWORLD";

        // Shuffle the string in one line
        string shuffled = new string(text.OrderBy(_ => Guid.NewGuid()).ToArray());

        Console.WriteLine($"Shuffled: {shuffled}");
    }
}

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✅ What’s cool about it?

• Uses OrderBy with Guid.NewGuid() for randomness.

• No loops or manual swaps needed.

• Works with any string—names, codes, even emojis.

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🧩 Curiosity twist: Shuffle words instead of characters!

string sentence = "C# makes coding fun and expressive";
string shuffledWords = string.Join(" ", 
    sentence.Split(' ').OrderBy(_ => Guid.NewGuid())
);

Console.WriteLine(shuffledWords);

Example output:

expressive coding and C# fun makes

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✍️ Written by Luis Fernandez Leyva, Software Engineer