Tools
Passwords & Hashes
Generate strong passwords with an entropy meter and compute hashes. Everything runs in your browser.
Generation and hashing run in your browser. Nothing is sent to any server.
Generator
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Hashes
About this tool
Passwords and Hashes generates strong passwords with an entropy meter and computes hashes (MD5, SHA-1, SHA-256, SHA-384, SHA-512) of any text. Everything runs in your browser; no password is transmitted or stored.
- Create robust passwords by tuning length and character types.
- Measure real entropy to know how strong a key is.
- Compute hashes to verify integrity or compare checksums.
Frequently asked questions
What is password entropy?
It is a measure in bits of how unpredictable it is. The more entropy, the more combinations an attacker would have to try. Length and character variety raise it the most; a long passphrase usually beats a short key with symbols.
Are MD5 or SHA-1 fine for storing passwords?
No. MD5 and SHA-1 are broken and too fast. Storing passwords requires slow, salted functions like bcrypt, scrypt or Argon2. Here the hashes are for integrity and checks, not for storing credentials.