Home / Office / Password Generator

Password Generator

Cryptographic randomness · generated in your browser, never uploaded

Password settings

Output

Tap "Generate"
Strength: -

Strong password tips

ScenarioRecommended lengthStrength guide
Regular website accounts12+ charsUpper + lower + digits
Email / cloud storage16+ charsAll four types
Payments / servers20+ charsAll four types + regular rotation
This tool uses browser cryptographic randomness (crypto.getRandomValues), fully offline; nothing remains after you close the page.

About this Password Generator

"123456", "qwerty" and "birthday + phone number" perennially top the weakest-password lists — credential stuffing and brute force crack them in seconds. Secure passwords need enough length and randomness, and human "random" choices tend to follow patterns.

This tool generates passwords with the browser's cryptographic random source (crypto.getRandomValues), with customizable length (6–64 characters) and character types, options to exclude confusable characters like 0/O and 1/l/I, and a live strength estimate (entropy bits). Everything runs locally in your browser — no network, no uploads, no storage.

How to use

  1. Drag the slider to choose the length (16+ characters recommended)
  2. Pick character types; "exclude look-alikes" helps when copying by hand
  3. Tap to generate and copy; use "Generate 5" for batches

FAQ

Are generated passwords logged?
No. Passwords are generated live in your browser with cryptographic randomness, no network requests at all — gone as soon as you close or refresh the page.
Why use a different password for every site?
If one site leaks, the same password gets tried en masse on your other accounts (credential stuffing). A unique password per site, saved in a password manager, is the safest setup.
How is password strength assessed?
By information entropy: strength = length × log2(charset size). A 16-character password using all four character classes has roughly 100 bits of entropy — infeasible to brute-force with current hardware.
Related:Password Generator · Random password generator · Strong passwords · Password strength test · Recommended

Related tools

QR Code Maker

Text / WiFi / vCard

Word Count

Characters / words / paragraphs / reading time

Dev Toolbox

Timestamp / JSON / Base64 / UUID / number bases