Developer

JWT Generator

Build JSON Web Token header and payload structures for development and testing. Generates base64url-encoded unsigned tokens — pair with JWT Decoder for inspection.

Generates header.payload structure without signing. Use for testing and learning — not for production auth.

Related tools

Continue with tools that pair well with this one.

JWT Decoder

Decode and inspect JSON Web Token headers and payloads

Developer

JSON Formatter

Format, validate, and minify JSON instantly

Text Tools

Hash Generator

Generate SHA-256, SHA-384, and SHA-512 hashes

Security

Frequently asked questions

Is the generated JWT signed?+

No. This tool generates unsigned JWT structures for testing only. Production tokens must be signed with a secret key on the server.

Is this tool free?+

Yes. Every Utilio utility is free with no sign-up, usage limits, or paywalls.

Do you store my data?+

No. Processing happens entirely in your browser. Your input never leaves your device.

Can I use this tool offline?+

Yes. Once the page loads, most tools continue working without an internet connection.