SHA-256 Hash Generator

Calculate the 256-bit SHA-2 digest of text and view hexadecimal or Base64 output without sending the input to a server.

Text

0UTF-8 bytes

256Digest bits

—Hexadecimal SHA-256

—Base64 SHA-256

Integrity and authenticity are different jobs

connects text/file digests, checksum verification and HMAC workflows. Hashes compare exact bytes; HMAC additionally depends on a shared secret key.

Password-storage boundary

Fast hashes such as SHA-256, SHA-1 and MD5 are not password-storage schemes. Production password storage should use a purpose-built slow password hashing/KDF design with salts and reviewed parameters; legacy algorithms remain here only for compatibility and checksum workflows.