Random Password Generator
Generate a truly random password in your browser — no patterns, no dictionary words, nothing to guess. Nothing is uploaded or stored.
Why random beats memorable
The strongest password is one nobody — not even you — could predict. Human-invented passwords follow patterns: pet names, birth years, keyboard walks like qwerty123. Password-cracking tools are built around exactly those habits, trying billions of pattern-based guesses per second. A random password has no pattern to exploit, so an attacker is reduced to brute force: trying every possible combination, which quickly becomes infeasible.
This password generator produces passwords with no dictionary words, no sequences, and no personal information — just uniformly random characters.
How the randomness works
Not all "random" is equal. The common Math.random() function is predictable and must never be used for security. This tool draws every character with crypto.getRandomValues, the browser's cryptographically secure random number generator, and applies rejection sampling to eliminate modulo bias — so each character in the pool is equally likely and independent of the others.
Choosing length and character sets
Four character sets are available: lowercase, uppercase, digits, and symbols. Keeping all four enabled gives the largest pool and the most entropy per character. Length matters even more: a 20-character password from all four sets carries about 130 bits of entropy, far beyond brute-force reach. If a site limits length, max it out; if it limits symbols, compensate with extra length. The "exclude ambiguous" option removes look-alike characters (I, l, 1, O, 0 and quote-like marks) so passwords are easier to read and retype.
What to do after generating
A random password is only useful if you don't reuse it. Generate a unique password for every account and store them in a password manager — that is the one master password worth memorizing. If you want to understand how strength is measured, see our strong password generator page, which explains entropy in more depth.
Private by design
Password generation happens entirely in your browser tab. Nothing is uploaded to a server, nothing is logged, and the tool never remembers what it generated. Close the tab and the password is gone — which is exactly why a password manager matters.
Frequently asked questions
Is the password really random?
Yes. Each character is drawn with crypto.getRandomValues, a cryptographically secure random number generator, using rejection sampling to avoid modulo bias. Math.random is never used, so there are no predictable patterns.
What length should I choose?
Use at least 16 characters for important accounts such as email and banking, and 20 or more when a site allows it. Every extra character multiplies the guessing work for an attacker.
Can I use this for Wi-Fi passwords?
Yes. A random 20-character password from all four character sets works well as a WPA2/WPA3 passphrase and is far stronger than a memorable phrase.
Will the site remember my password?
No. Generation happens entirely in your browser tab. The password is never uploaded, logged, or saved — closing the tab discards it.
Why not just invent my own password?
Human-invented passwords follow patterns: names, dates, keyboard walks. Attackers exploit exactly those patterns. A random password has no pattern to exploit.
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