JWT Decoder for C#
Free online jwt decoder with C# code examples
Working with jwt decoder in C#? Our free online jwt decoder helps C# developers format, validate, and process data instantly. Below you will find C# code examples using System.IdentityModel.Tokens.Jwt so you can achieve the same result programmatically in your own projects.
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Open JWT DecoderC# Code Example
using System.IdentityModel.Tokens.Jwt;
using System.Text.Json;
var token = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c";
var handler = new JwtSecurityTokenHandler();
var jwt = handler.ReadJwtToken(token);
Console.WriteLine("Algorithm: " + jwt.Header.Alg);
Console.WriteLine("Subject: " + jwt.Subject);
foreach (var claim in jwt.Claims)
Console.WriteLine(claim.Type + ": " + claim.Value);Quick Setup
Library: System.IdentityModel.Tokens.Jwt
dotnet add package System.IdentityModel.Tokens.JwtC# Tips & Best Practices
- ReadJwtToken reads without validation
- Use ValidateToken with TokenValidationParameters for verification
- Microsoft.IdentityModel is the official .NET JWT library