About Hash Generator
A cryptographic hash turns any input into a fixed-length fingerprint. The same input always produces the same hash, while any change produces a completely different one, which makes hashes useful for verifying file integrity and detecting tampering.
How to use
- Type or paste the text you want to hash.
- Read the SHA-1, SHA-256, SHA-384 and SHA-512 digests.
- Copy whichever digest you need.
Frequently asked questions
Can a hash be reversed?
No. Hashing is one-way by design. Short or common inputs can still be recovered by brute force or lookup tables, which is why passwords need a salted, deliberately slow algorithm instead.
Which algorithm should I use?
SHA-256 is the sensible default. SHA-1 is considered broken for security purposes and should only be used against legacy systems that require it.
Should I hash passwords with this?
No. Password storage needs a slow, salted algorithm such as bcrypt, scrypt, or Argon2. General-purpose hashes are far too fast and leave passwords vulnerable to brute force.