New
SHA Hash Generator
Get SHA-1, SHA-256, SHA-384 and SHA-512 hashes or HMACs of text or a file, and verify a checksum.
How it works
Password Generator
Generate random passwords with your browser's cryptographic random number generator. Pick the length and character types, and see how long each would take to guess.
Your password
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- 01
Set the length. 16 or more is a good default for accounts in a password manager.
- 02
Choose uppercase, lowercase, numbers and symbols, and whether to skip look-alike characters such as l, 1, O and 0.
- 03
Copy a password, or generate several at once and pick one.
Good to know
- Every password includes at least one character from each type you pick, then fills the rest at random and shuffles.
- Symbols leave out quotes, backslashes and spaces, which break some sign-up forms and command lines.
- The guess-time estimate assumes an attacker making 10 billion guesses a second against a leaked password hash. Online logins are far slower to attack.
FAQ
Frequently asked questions
Are the passwords stored or sent anywhere?
No. They're made in this tab with crypto.getRandomValues and disappear when you close or reload it.
How long should a password be?
Length beats complexity. 16 random characters from all four types is about 105 bits, far beyond what can be guessed. For one you'll type often, use a longer passphrase instead.
Is a site that rejects symbols a problem?
Not much. Untick Symbols and add a few characters of length to make up for it: 20 letters and digits is stronger than 16 with symbols.
Missing something?
Tell us the tool you wish existed.
Describe the job and the file types involved. The most requested tools get built first.