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SHA256 Hash Generator

Generate SHA-256 (Secure Hash Algorithm 256-bit) cryptographic hash for text and files

Hash Text

Examples:

Hash File

Click to upload a file

or drag and drop

Any file type • Max 100MB

About SHA-256

• SHA-256 (Secure Hash Algorithm 256-bit) is a cryptographic hash function
• Produces a 256-bit (32-byte) hash value, typically rendered as 64 hexadecimal digits
• Part of the SHA-2 family, designed by the NSA and published by NIST
• One-way function: impossible to reverse the hash back to original data
• Deterministic: same input always produces the same hash
• Avalanche effect: small input changes produce completely different hashes

Common Uses:

• Password storage (when properly salted)
• File integrity verification
• Digital signatures and certificates
• Blockchain and cryptocurrency (Bitcoin uses SHA-256)
• Data deduplication
• Checksums for downloads

Security Note:

SHA-256 is considered cryptographically secure for most applications. However, for password hashing, use specialized algorithms like bcrypt, scrypt, or Argon2 that are designed to be slow and resist brute-force attacks.