Generate strong random passwords. Custom rules, strength meter, batch mode.
Generate cryptographically strong random passwords. Configure length, uppercase, lowercase, numbers, symbols. Visual strength meter. Generate multiple passwords at once.
Upload your file using the tool above.
Adjust any settings to your preference.
Click the process button and wait for results.
Download your output using the download button.
Length beats complexity. Sixteen characters is a sensible modern minimum, and 20 or more for anything holding money or personal data. Each extra character multiplies the search space, so a long password of mixed characters is far stronger than a short one padded with symbol substitutions like replacing o with 0.
Here, yes — generation happens entirely in your browser using the cryptographic random source, and nothing is transmitted or stored. That said, the safest habit is generating passwords inside your password manager, since it creates and stores them in one step without the value ever touching a clipboard.
Only if you will ever type or read the password aloud, where confusing l with 1 or O with 0 causes real frustration. Excluding them very slightly shrinks the search space, which is irrelevant at reasonable lengths. For passwords that live permanently in a manager and are only ever pasted, keep the full character set.
Yes, Password Generator is completely free. No signup, no account, and no watermark on outputs. A Pro tier is available for 100 AI ops/day and larger file sizes.
Password Generator runs entirely in your browser. Your file is never uploaded — it is read, processed and saved locally, so it never reaches our servers or anyone else's. You can disconnect from the internet after the page loads and it still works.
of confirmed data breaches involve weak or reused passwords
Source: Verizon DBIR 2023
is how long it takes to crack a 6-char lowercase password with a GPU
Source: Security research
stolen credentials are actively circulating on the dark web right now
Source: Digital Shadows
is the world's most common password — cracked before you finish reading this
Source: NordPass 2024
Cryptographic security: Uses window.crypto.getRandomValues() — a CSPRNG (Cryptographically Secure Pseudo-Random Number Generator) provided by your operating system kernel. This is the same randomness source used by password managers, SSL/TLS, and cryptographic keys. Regular Math.random() is NOT used.
Understanding entropy (bits): Entropy measures unpredictability. Every additional bit doubles the number of possible passwords. 60 bits = 2^60 combinations (secure for most uses). 80+ bits = recommended for banking, email, and high-value accounts. 128 bits = effectively uncrackable with current technology.
Generation modes: Random gives the highest entropy per character — ideal for password managers. Passphrases (5+ words) balance memorability with strong security (~40 bits). Memorable passwords are pronounceable so you can type them without a manager. PINs are for low-attempt-count systems (ATMs, door codes) only.
Privacy guarantee: All passwords are generated entirely in your browser using local JavaScript. Nothing is transmitted to any server. No passwords, inputs, or metadata are logged, stored, or shared — ever. Close the tab and the passwords are gone.