Password, Passphrase & PIN Generator
Create random passwords, passphrases and PINs with configurable options. Compare formats and review compatibility and strength-estimate limitations.
A fresh password. Your rules.
Random characters, memorable words or a numeric PIN.
About passwords and passphrases
Use a different password for each account and keep it in a password manager. Selecting a character type guarantees at least one character from that type. Moving the length slider generates a new result automatically. Other option changes clear the old result.
Passphrase word list adapted from the Electronic Frontier Foundation, licensed under CC BY 4.0. Four hyphenated entries are omitted.
Choose the secret format your application accepts.
Random passwords, word-based passphrases and numeric PINs solve different input needs. Select the mode first, then review length and allowed characters. For interface testing, keep public example strings separate from any credentials used to protect real accounts.
- 01
Match the receiving form
Check its supported length and character set. Test that paste works and that validation explains a rejected character rather than silently changing the value.
- 02
Choose the appropriate controls
Random mode offers character groups; passphrase mode uses word count and separators; PIN mode produces digits. A longer-looking phrase is not measured in the same way as a digit string.
- 03
Handle the output deliberately
Avoid putting real credentials in screenshots, bug reports or shared test fixtures. Use a fresh value for each real account and store it in your chosen password manager.
Example: test a password form without a real secret
Public fixture: Example-Only-Do-Not-Use-42!
Check: paste → submit → documented acceptance or error
Never assign this published string to a real account.The fixture is intentionally public. It helps test input behavior, but is not a generated secret or a measure of your account security.
| Mode | Main control | Useful distinction |
|---|---|---|
| Random | Length and character groups | Check the target character policy |
| Passphrase | Words and separators | Words are selected from a fixed list |
| PIN | Digit count | Leading zeros are meaningful |
Before you use the result
Practical answers for your next test.
Does capitalization make a passphrase unpredictable?
A predictable capitalization rule is not equivalent to choosing additional random words. Treat the displayed estimate as a model of the actual generation process.
Can a PIN start with zero?
Yes. Preserve it as text when testing your application; numeric conversion can shorten it.
Will the generator remember a value?
Do not rely on regenerating a previous secret. Keep anything you need in an appropriate private store, not a public fixture or shared screenshot.