CipherSmith is a browser-based cryptography toolkit where all operations run locally with no data sent to any server. It covers PKI (key generation, CSR creation, certificate signing and inspection, PKCS#12), symmetric and asymmetric crypto (AES-GCM, RSA-OAEP, ECDH, Ed25519), JOSE (JWT/JWE/JWS with all major algorithm families), password hashing (Argon2), TOTP/HOTP, Shamir Secret Sharing, encoding utilities, and even OPRF/VOPRF. Built on WebCrypto API and audited libraries like @noble/curves and @peculiar/x509, it targets developers who need quick crypto operations without pasting sensitive data into untrusted online tools. Open-sourcing is planned.
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CipherSmith: a browser-based crypto toolkitWhat’s in thereNothing leaves your browserIt’s a dev toolWhat’s nextSort: