Free Password Generator
Weak or reused passwords expose your email, banking, shopping, and social accounts.
Generate strong random passwords, passphrases, and PINs in your browser. Entropy scoring and crack time estimates are included. No account. No data sent to servers.
What Is a Password Generator?
This tool creates random, unpredictable passwords you could not safely create yourself. It runs entirely in your browser with the Web Crypto API. It includes Random, Passphrase, and PIN modes. Length adjusts from 4 to 128 characters, and live entropy scoring with estimated crack time shows how strong each result is.
How to Use This Password Generator
Use this tool when an account needs a new password, passphrase, or PIN.
- Choose Random, Passphrase, or PIN for the account.
- Set the length or word count with the slider.
- Copy the result and save it in a password manager.
How to Read Your Results
Password Strength
Very Weak and Weak passwords should be regenerated or lengthened. Medium is acceptable for low-risk accounts. Strong and Very Strong are suitable for any account.
Entropy in Bits
Measured in bits. Under 40 bits is crackable quickly. 60 bits is a reasonable minimum. 80 bits or more is strong. 100 bits or more is excellent — a 16-character random password typically reaches this range.
Estimated Crack Time
Assumes a high-speed offline brute-force attack. Instantly means the password falls immediately. Centuries means it is not realistically crackable with current technology.
Generator Mode
Random gives the highest entropy per character. Passphrase gives fewer bits per word — use five or more words to reach a strong result. PIN is intentionally low entropy and should only be used where digits are required.
Random Password, Passphrase, and PIN Modes
Different accounts accept different formats. The tool supports random passwords, passphrases, and PINs.
Random Password Generator
Best for accounts saved in a password manager. Choose uppercase, lowercase, numbers, symbols, and exclude ambiguous characters (I, l, 1, O, 0) in one click.
Passphrase Generator
Best when you need something easier to type or remember. Capitalize words and append a random number for extra entropy.
PIN Generator
Best for devices and systems that only accept digits. Not available in most other generators.
Recommended Password Lengths
Use the longest length the account accepts. These choices cover common 8, 12, 15, and 16 character requirements.
8-Character Password Generator
Use only when a site enforces a short password limit. Upgrade to 12 or more when allowed.
12-Character Password Generator
Useful when a site limits password length.
15-Character Password Generator
A strong default for most new accounts.
16-Character Password Generator
A practical upgrade when the site allows it.
Password Strength: More Than Just a Mix of Characters
Password strength depends on length, randomness, and uniqueness. A long random password beats a short complex-looking one. The tool rates strength from Very Weak to Very Strong based on entropy — the higher the bits, the harder it is to crack.
Password Entropy: A Quantitative Measure of Strength
Password entropy estimates how hard a password is to guess by brute force. Higher entropy means more possible combinations. This tool displays entropy in bits and estimated crack time for every generated password — a detail most generators do not show.
Privacy and Security
This tool is built so generated values stay on your device.
- Browser-only: The generated value is created locally in your browser.
- Secure randomness: Random choices use the Web Crypto API with rejection sampling to avoid modulo bias.
- No storage: Toolkit Wizard does not store or transmit generated passwords.
Frequently Asked Questions (FAQ)
Frequently Asked Questions