JWT Builder RSA ES
Sign JSON Web Tokens with RSA, ECDSA, or RSA-PSS private keys in your browser. Supports RS256/384/512, PS256/384/512, and ES256/384/512.
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Build asymmetric JWTs in the browser
Sign JSON Web Tokens with RSA, RSA-PSS, ECDSA, or Ed25519 private keys. Paste a PKCS#8 PEM or private JWK, edit the header and payload JSON, and copy the compact token for API tests, nothing leaves your device.
Frequently Asked Questions
Which algorithms are supported?
RS256/384/512, PS256/384/512, ES256/384/512, and EdDSA (Ed25519) using the Web Crypto API.
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