#Hash Generator
Generate MD5, SHA-256, SHA-512 hashes
Hash Generator Complete Guide
Hash functions are fundamental building blocks of digital security: password storage, file integrity, digital signatures, blockchain. This tool uses Web Crypto API for 100% browser-side processing — your data never leaves your machine.
Enhanced Features
- Live Auto-Hash: Instant 4-algorithm computation as you type
- File Hashing: Drop any file → instant hash (for download verification)
- Compare Mode: Auto-match against any of 4 algorithms → ✓ match / ✗ mismatch
- 4 Algorithms: SHA-1 (160bit), SHA-256, SHA-384, SHA-512
Algorithm Comparison
| Algorithm | Length | Status | Use Case |
|---|---|---|---|
| SHA-1 | 160bit (40 hex) | ⚠️ Collisions found | git compatibility only |
| SHA-256 | 256bit (64 hex) | ✓ Secure | Standard (HTTPS, JWT) |
| SHA-384 | 384bit (96 hex) | ✓ Secure | High-security (gov, finance) |
| SHA-512 | 512bit (128 hex) | ✓ Secure | Maximum security, fast on 64-bit |
Real-World Use Cases
- Download Verification: Match ISO file hash against published value
- Git Commits: SHA-1 identifies commits
- HMAC: SHA-256 for message authentication
- Blockchain: Bitcoin SHA-256, Ethereum Keccak-256
- Duplicate Detection: Same hash = same file
⚠️ Never store passwords with SHA. Use proper KDFs: bcrypt, scrypt, or Argon2.
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