🔐 SHA256 Hash Generator
Generate SHA-256 cryptographic hash. Free online SHA256 tool — browser-based, private.
Hash will appear here...
FAQs
Q: What is SHA-256?
A: SHA-256 (Secure Hash Algorithm 256-bit) is a cryptographic hash function. The same input always produces the same output, and the original value cannot be reconstructed from the hash.
Q: What is the difference between SHA-256 and MD5?
A: SHA-256 is more secure and produces a 256-bit output. MD5 produces a 128-bit output and is vulnerable to collision attacks, so SHA-256 is generally preferred.
Q: Where is SHA-256 used?
A: SHA-256 is used in password handling, digital signatures, blockchain systems like Bitcoin, and file integrity verification.