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Online MD5, SHA256, SHA512 Hash Generator
- Authors
Hashes are a fundamental part of cryptographic systems, used in everything from verifying passwords to checking file integrity. This tool lets you easily generate:
- MD5
- SHA-1
- SHA-256
- SHA-512
Paste your input below and get the hashes instantly.
🔐 What is a Hash?
A hash is a one-way cryptographic function that maps data to a fixed-length string. Hash functions are used to:
- Verify file integrity
- Store passwords securely (hashed + salted)
- Generate digital signatures
⚠️ Hashes are irreversible! You cannot convert them back to the original text.
🤔 What's the Difference?
| Algorithm | Output Length | Security Level | Common Use |
|---|---|---|---|
| MD5 | 128-bit | Weak | Legacy systems, checksums |
| SHA-1 | 160-bit | Broken | Deprecated security systems |
| SHA-256 | 256-bit | Strong | JWTs, Blockchain |
| SHA-512 | 512-bit | Very Strong | High-security apps |
Stay safe—never use MD5 or SHA-1 for sensitive security purposes.