Which signing algorithm should I use?

HS256 (symmetric) is simpler and uses a shared secret. RS256 (asymmetric) uses public/private key pairs for better security.

Is it safe to generate JWTs here?

Yes, all token generation and signing happens in your browser. Your secrets and private keys are never transmitted.

Can I set token expiration?

Yes, set the exp claim to control when the token expires. You can set it manually or use the date picker.

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JWT Generator

Generate and sign JSON Web Tokens

Header (JSON)

Payload (JSON)

Secret Key

Generated Token

About JWT Generator

What is JWT Generator?

Generate JWT tokens for testing and development. Set custom header and payload claims, choose signing algorithm (HS256, RS256), and create valid JWTs. All signing happens in your browser for security.

Features & Benefits

Create JWTs with custom claims
HS256 and RS256 signing
Set expiration time
Add standard and custom claims
Signing happens locally
Copy ready-to-use tokens

Frequently Asked Questions

Which signing algorithm should I use?: HS256 (symmetric) is simpler and uses a shared secret. RS256 (asymmetric) uses public/private key pairs for better security.
Is it safe to generate JWTs here?: Yes, all token generation and signing happens in your browser. Your secrets and private keys are never transmitted.
Can I set token expiration?: Yes, set the exp claim to control when the token expires. You can set it manually or use the date picker.

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How-To Guides

How to Create a JWT Token

Guides

Generate JWT Online Free JWT Token Generator in Your Browser

100% Private & Secure

This tool runs entirely in your browser. Your files and data never leave your device and are not uploaded to any server.