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Conversietools

JWT Generator and Signer

Create signed JWTs with HMAC, RSA, RSA-PSS or ECDSA using browser Web Crypto.

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Supports HS/RS/PS/ES 256, 384 and 512. HS256/384/512 need at least 32/48/64 UTF-8 key bytes; RSA keys need 2048 bits. PEM uses PKCS#8 private keys.

Up to 100,000 UTF-16 units per input and 1,000,000 per result. See the supported formats and examples below.

Hoe werkt het

  1. Create signed JWTs with HMAC, RSA, RSA-PSS or ECDSA using browser Web Crypto.
  2. Choose the mode or options, then run the tool.
  3. Review the result, then copy or download the TXT file.

Voorbeeld

{"sub":"123"} + secret → signed JWS compact token

Details en beperkingen

Text stays in your browser; it is not sent to a conversion server.

Referenties

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