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Cryptography & security tools

Hashes, encodings, keys, passwords and certificates, computed locally where possible. · 10 tools

  • Crypto Kitchen

    CyberChef-style recipes: chain encodings, compression, hashes, AES, JWT and more, step by step.

    JSON API · MCP

  • Hash & HMAC Calculator

    MD5, SHA-2, SHA-3, BLAKE2, CRC32 and HMAC of text or files, with checksum compare.

    JSON API · MCP

  • Key Derivation Lab

    Derive keys with PBKDF2, scrypt, Argon2id and HKDF; compare costs with OWASP advice.

    JSON API · MCP

  • Local File Encryption Studio

    Encrypt and decrypt files with AES-256-GCM and a password, locally in your browser.

    JSON API · MCP

  • Password & Passphrase Generator

    Strong random passwords and passphrases, made in your browser, with exact entropy.

    JSON API · MCP

  • Private Breach Checker

    Check if a password appears in known breaches without revealing it (k-anonymity).

    Uses live data · JSON API · MCP

  • RSA/ECC Key Inspector

    Inspect PEM, DER, JWK or OpenSSH keys: type, size, curve, fingerprints, thumbprint and weaknesses.

    JSON API · MCP

  • Shamir Secret Sharing

    Split a secret into n shares so any k recover it, and combine shares, locally.

    JSON API · MCP

  • TLS Cipher-Suite Simulator

    See which TLS version, cipher and group browsers, Android, Java and OpenSSL get from your server.

    JSON API · MCP

  • X.509 / ASN.1 Certificate Inspector

    Decode X.509 certificates, chains and CSRs: SANs, usages, CT SCTs, chain order and an ASN.1 tree.

    JSON API · MCP

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