Crypto

JWT Builder

Edit JWT header/payload, set expiry, and optionally HS256-sign in the browser.

Runs in this tab. We do not upload what you paste.

Edit claims and encode. Optional HS256 signing stays in your browser — do not use production secrets on shared machines.

Header (JSON)

Payload (JSON)

HMAC secret (optional HS256)

JWT

Unsigned prefix

How to use this

Paste or type into the fields above. Nothing leaves this tab.
Read the result, then copy it into your editor or ticket.
For production pipelines, use your normal toolchain. This page is for a fast check.

About JWT Builder

Edit JWT header/payload, set expiry, and optionally HS256-sign in the browser. Processing stays in your browser, so drafts, tokens, and configs are not sent to Myrafy.

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