Generate cryptographic MD5, SHA-1, SHA-256, and SHA-512 hashes from text instantly using standard browser APIs.
How to use it
- Type or paste the text you want to hash.
- All four hashes are calculated as you type.
- Copy the one you need.
Frequently asked questions
Can a hash be reversed?
No. Hashing is one way by design. What attackers do instead is hash enormous lists of candidate inputs and look for a match, which is why weak passwords fall so fast.
Should I still use MD5 or SHA-1?
Only as a checksum against accidental corruption. Both are broken for security purposes and must not be used for signatures or password storage.
Which hash should I use for passwords?
None of these. Passwords need a slow, salted algorithm such as bcrypt, scrypt or Argon2. Plain SHA-256 is far too fast to be safe.