SHA256 Hash Generator
Generate secure SHA256 hashes for cryptographic applications and data integrity
Text Input
SHA256 Hash
Uppercase:
Lowercase:
About SHA256 Hashing
SHA256 (Secure Hash Algorithm 256-bit) is part of the SHA-2 family and produces a 256-bit (64-character hexadecimal) hash value. It's currently considered secure for cryptographic use.
Common Uses:
- Cryptocurrency: Bitcoin and many other cryptocurrencies
- Digital certificates: SSL/TLS certificate signing
- Password hashing: Secure password storage (with salt)
- File integrity: Secure file verification
- Blockchain: Block validation and proof-of-work
- Digital signatures: Modern signature algorithms
Characteristics:
- Fixed length: Always produces 64-character hexadecimal output
- Cryptographically secure: Resistant to collision attacks
- Deterministic: Same input always produces same hash
- One-way: Computationally infeasible to reverse
- Avalanche effect: Small input changes cause large output changes
Security: SHA256 is currently considered cryptographically secure and is recommended for security-sensitive applications.