JWT Encoder
Build a JWT: set header, payload (JSON), and signing key. Get the signed token.
JWT Encoder
How it works
We Base64URL-encode header and payload, then sign with HMAC-SHA256.
When to use it
Testing auth, generating tokens.
Frequently asked questions
Algorithms?
HS256 typical; RS256 needs private key.
Expiry?
Set exp in payload (Unix seconds).