Quick Start: Generate Your First JWT Secret in 5 Minutes

Need a JWT secret for your app right now? This guide gets you from zero to a signed token in five minutes.

Step 1: Generate a Secret

Open the JWT Secret Generator and click Generate. The default 256-bit key is the right choice for most HS256 applications.

All generation happens in your browser — nothing is sent to a server.

Step 2: Store It Safely

Copy the generated key and add it to your environment:

JWT_SECRET=your-generated-hex-key-here

Never commit this value to git. Use your hosting platform's secrets manager in production.

Step 3: Sign a Token

Node.js:

const jwt = require('jsonwebtoken');
const token = jwt.sign({ userId: 1 }, process.env.JWT_SECRET, { algorithm: 'HS256', expiresIn: '1h' });

Python:

import jwt, os
token = jwt.encode({'userId': 1}, os.environ['JWT_SECRET'], algorithm='HS256')

Step 4: Verify It Works

Paste your token into the JWT Validator with your secret to confirm the signature is valid.

Next Steps

• Read the JWT Best Practices Checklist before going to production
• Learn HS256 vs RS256 if you are choosing an algorithm
• Set up key rotation for long-running services