DevToolDockDevToolDock

JWT Decoder

Decode and inspect JWT header and payload. Signature is not verified.

Header will appear here.
Payload will appear here.

What is JWT Decoder?

A JWT has three Base64url-encoded parts: header, payload, and signature. This tool decodes header and payload for inspection only; it does not verify the signature.

How to use

1. Paste your JWT token in the input.

2. Click Decode. Header and payload will appear as formatted JSON.

Related Tools

UUID Generator

Generate UUID v4 identifiers.

Open Tool

UUID Validator

Validate UUID strings (v1–v5).

Open Tool

Password Generator

Generate secure random passwords.

Open Tool

SHA256 Generator

Compute SHA-256 hash of text.

Open Tool

MD5 Generator

Compute MD5 hash of text.

Open Tool

bcrypt Generator

Generate bcrypt hashes in the browser for testing.

Open Tool

Popular Tools

JSON Formatter

Format, validate, and beautify JSON with syntax highlighting.

Open Tool

Regex Tester

Test regular expressions and highlight matches.

Open Tool

Base64 Encoder

Encode text to Base64.

Open Tool

UUID Generator

Generate UUID v4 identifiers.

Open Tool

JWT Decoder

Decode and inspect JWT header and payload.

Open Tool