Crypto

Generate secure, random passwords with customizable options

Check and analyze password strength with detailed security metrics

Supporting over 30 hash algorithms including SHA-256, MD5, SHA3, BLAKE3, SM3, CRC32, RIPEMD, KECCAK, SHAKE, and more — this free online tool helps you generate hash values for any text or file.

Securely encrypt and decrypt text and files using various symmetric encryption algorithms, including AES, DES, and SM4

Compute HMAC (Hash-based Message Authentication Code) for data using a key

Free online X.509 certificate decoder tool. Parse and analyze SSL/TLS certificates, view certificate details, check validity, extract public keys, and export reports.

Encrypt and decrypt messages using RSA public/private key cryptography

Encrypt and decrypt data using the SM2 public key cryptographic algorithm, a Chinese national standard.

Batch generate RSA key pairs with customizable key lengths, clearly display the structure information of public and private keys, including modulus (m), public key exponent (e), private key exponent (d), prime factors (p, q), and modular inverse of private key exponent (dp, dq, coef)

Generate SM2 public and private key pairs with various formats according to the GB/T 32918-2016 standard

Sign data with RSA private keys and verify signatures with public keys, supporting multiple formats and algorithms

Sign data with SM2 private keys and verify signatures with public keys, supporting multiple hash algorithms