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DevDash

Last updated: April 13, 2026

UUID Generator for C# / .NET Developers

Quick Answer

DevToolHQ's uuid generator works great alongside C# / .NET. Use it to quickly uuid generator during development, then integrate the pattern into your C# / .NET codebase using the code example below.

Use Cases in C# / .NET

  • 1.Generate unique primary keys for database records
  • 2.Create idempotency keys for API requests
  • 3.Assign unique request IDs for distributed tracing
  • 4.Generate unique filenames for uploads

C# / .NET Code Example

C# / .NET
using System;

// Generate UUID v4
var id = Guid.NewGuid();
Console.WriteLine(id.ToString()); // lowercase hyphenated
Console.WriteLine(id.ToString("N")); // no hyphens
Console.WriteLine(id.ToString("B")); // {curly braces}

// Parse and validate
if (Guid.TryParse("550e8400-e29b-41d4-a716-446655440000", out var guid)) {
    Console.WriteLine($"Valid: {guid}");
} else {
    Console.WriteLine("Invalid GUID");
}

// Use as Entity Id
record UserId(Guid Value) {
    public static UserId New() => new(Guid.NewGuid());
}

Try the tool directly

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Open Uuid Generator

Frequently Asked Questions

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