JWT Encoder / Generator

Edit header and payload JSON, provide a secret, and create a signed JWT for local testing.

Features

Input

HS256 secret

Output

header.payload.signature

JWT Encoder generates HS256 tokens in the browser for development and debugging. Pair with the JWT Decoder to inspect claims.

This tool currently signs with HS256 only.

No - signing is local. Still avoid production secrets on shared PCs.

Use JWT Decoder to inspect; verification against a secret is not included.

Decode JWT header and payload locally without verifying the signature.

Encode text to Base64 or decode Base64 back to plain text.

Generate MD5, SHA-1, and SHA-256 hashes from any text input.