SHA-256 Hash Generator

Generate SHA-256 cryptographic hashes from any text input. SHA-256 is the hash function used in Bitcoin.

SHA-256 Hash Generator

Generate SHA-256 cryptographic hashes from any text input.

Text to Hash

SHA-256 Hash

About SHA-256

SHA-256 is the cryptographic hash function used in Bitcoin. It produces a unique 256-bit (32-byte) hash for any input, displayed as 64 hexadecimal characters.

Common uses:

Bitcoin block hashing and mining
Digital signatures and certificates
Password storage (with salt)
Data integrity verification
Merkle tree construction

What is SHA-256?Activity

SHA-256 (Secure Hash Algorithm 256-bit) is a cryptographic hash function that produces a unique 256-bit (32-byte) hash for any input, displayed as 64 hexadecimal characters.

Key Properties

Deterministic: Same input always produces the same hash

Fixed Output: Always 64 hex characters (256 bits)

Avalanche Effect: Small input changes create completely different hashes

One-Way: Computationally infeasible to reverse

Common

Bitcoin block hashing and mining

Digital signatures and certificates

Password storage (with proper salting)

Data integrity verification

Merkle tree construction