Cryptographic Hashing Utility

Cryptographic Hash & Checksum Generator

Generate hardware-accelerated SHA-256, SHA-512, SHA-1, and HMAC-SHA256 digest strings. Compute file integrity checksums directly in browser memory.

WebCrypto API

Calculate client-side SHA-256, SHA-512, SHA-1, and HMAC verification digests instantly.

Hash File

Input Plaintext Payload:40 chars

HMAC Secret Key (Optional):

SHA-256 (Industry Standard / Bitcoin / TLS)

Calculating...

SHA-512 (High Security / 512-bit)

Calculating...

HMAC-SHA256 (Signature Verification)

Enter secret key on left to compute

SHA-1 (Legacy / Git Commit Hash)

Calculating...

Native WebCrypto Subtles: Hardware-accelerated client executionSecureStack Crypto

Standard cryptographic hashing algorithms compliant with NIST standards for password hashing and message integrity.

Calculate Hash-based Message Authentication Codes with custom shared secret keys for API webhook signing.

Drop any local file to verify MD5/SHA checksum matches without uploading files to remote servers.