hash sha256 generator, SHA256 hash generator, SHA-256 hash, generate SHA256 hash, SHA-1 SHA-256 SHA-384 SHA-512 hash, MD5 hash generator, cryptographic hash, hex digest, checksum, message digest generator, file integrity hash, content fingerprint. Compute hash of any text using MD5, SHA-1, SHA-256, SHA-384, or SHA-512. Returns hex digest. For AI agents, integrity checks, deduplication, content addressing.