Developer Tool

JWT Decoder & Encoder

Decode and verify JSON Web Tokens (JWT) instantly.

Quick Guide

  1. Step 1: Paste your JWT token in the input area
  2. Step 2: View decoded header, payload, and signature
  3. Step 3: Modify payload values for testing
  4. Step 4: Copy the re-encoded token

What is JWT Decoder & Encoder?

JWT Debugger decodes and inspects JSON Web Tokens. See also: jwt-decoder or jwt-generator.

How It Works

To use JWT Decoder & Encoder, first paste your JWT token in the input area. Then, view decoded header, payload, and signature. After that, modify payload values for testing. The result appears instantly in your browser.

Use Cases

Frequently Asked Questions

What is JWT Decoder & Encoder?

JWT Debugger decodes and inspects JSON Web Tokens. It runs entirely in your browser, with no sign-up and no file uploads.

How do I use JWT Decoder & Encoder?

First, paste your JWT token in the input area. Then, view decoded header, payload, and signature. Modify payload values for testing.

Is JWT Decoder & Encoder free and private?

Yes - JWT Decoder & Encoder is completely free and requires no account. Everything runs locally in your browser, so your code and data never leave your device.

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