Hash Generator
Generate MD5, SHA1, SHA256, and SHA512 hashes. All processing happens locally in your browser.
About Hash Functions
A hash function takes input data and produces a fixed-size string of characters. The same input always produces the same output, but it's computationally infeasible to reverse the process.
Hash Types
- MD5: 128-bit hash, fast but cryptographically broken. Use only for checksums.
- SHA1: 160-bit hash, also deprecated for security. Still used in git.
- SHA256: 256-bit hash, part of SHA-2 family. Widely used and secure.
- SHA512: 512-bit hash, stronger than SHA256, slower on 32-bit systems.
Common Use Cases
- File integrity verification
- Password storage (use bcrypt/argon2 instead for passwords)
- Digital signatures
- Data deduplication
- Cache keys
Security Note
MD5 and SHA1 should not be used for security purposes. They are vulnerable to collision attacks. Use SHA256 or SHA512 for cryptographic applications.