SHA-256 Hash Generator
Generate SHA-256 hashes from any text or file directly in your browser. SHA-256 is the industry standard for cryptographic hashing — used in TLS certificates, Bitcoin, digital signatures, and password storage. It produces a 256-bit (64-character hex) digest.
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Frequently Asked Questions
›What is SHA-256 used for?
SHA-256 is used everywhere in modern security: TLS/SSL certificates, Bitcoin mining, code signing, password hashing (as part of bcrypt/PBKDF2), file integrity verification, and digital signatures.
›Is SHA-256 secure?
Yes. SHA-256 is part of the SHA-2 family and is considered cryptographically secure. No practical collision attacks exist. It's approved by NIST and used in government and military applications.
›How long is a SHA-256 hash?
A SHA-256 hash is always 256 bits, which is 64 hexadecimal characters or 44 Base64 characters.