Hash Generator
Generate cryptographic hashes. MD5, SHA-1, SHA-256, SHA-384, SHA-512.
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Client-side only
Input text
What is a hash and which should I use?
A hash function converts any input into a fixed-length fingerprint. The same input always produces the same output, but you cannot reverse it to get the original.
Use SHA-256 for:
- File integrity checks
- Digital signatures
- Password hashing (with bcrypt/Argon2 on top)
- Data deduplication
Avoid MD5 & SHA-1 for:
- Password storage
- Security certificates
- Any authentication flow
- Anything where collision resistance matters