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100% Client-Side — Your keys never leave your browser.
Key generation uses window.crypto.subtle (Web Crypto API). No network requests are made. Keys exist only in your browser's memory and are never transmitted anywhere. Generated keys are exported in standard PEM format (SPKI for public, PKCS#8 for private).
Public Key Fingerprint (SHA-256)
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Use this key to encrypt data or verify signatures. Safe to share publicly.
Keep this key secret. Never share it, expose it in code, or commit it to version control.
Format info: The public key uses the SPKI (SubjectPublicKeyInfo) format — compatible with OpenSSL, Java, and most crypto libraries. The private key uses PKCS#8 (unencrypted) — compatible with Node.js crypto.createPrivateKey(), OpenSSL, Java, and Python's cryptography library.