Auth & Secrets · Developer

JWT Generator

Build a signed HS256 JWT from header claims, payload, and a secret.

How to use

  1. Edit the JSON payload (and optional header fields).
  2. Enter a signing secret.
  3. Generate and copy the token.

Features

  • HS256 via Web Crypto
  • Editable payload JSON
  • Runs in your browser. Inputs are not uploaded to ToolsWeb servers.

Privacy & how it works

This developer utility runs in your browser with JavaScript and Web APIs. Your text, tokens, and secrets are not uploaded to ToolsWeb servers for this tool. Privacy Policy.

FAQ

Can I verify signatures here?expand_more

Use JWT Decoder to inspect claims. This tool signs locally with your secret — keep secrets offline.

Is this tool free?expand_more

Yes. No signup and no paywall for core use.

Is my text uploaded?expand_more

No for this tool. Text stays in your browser while you work.

Do I need an account?expand_more

No. Open the page and start typing or pasting.

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