A 📦 tiny, 🚀 fast, 🎨 customizable password generator of javascript implement.

Default run as chrome builtin password generator.

[English / 中文]

✨ Features

• 🚀 Run fast (~1m ops/s by default, ~1.3m ops/s without shuffle [MacBook Air (M1, 2020) 16G])
• 🛡 Strong password have over 88 bits of entropy and fully tested
• 🎨 Fully customizable and readability (no similar chars or sequences of -/_)
• 📦 Tiny and tree shaking support
• 🌎 Support web, Node and service worker with esm, cjs amd umd

🎬 Quick Start

Install

npm i z-generate-password

Usage

import generatePassword from 'z-generate-password';

console.log(generatePassword());
// yacpVZuF3TSQAjZn

Passwords like

b2qaDfrH9BceXRWC
F68dVNajxdDUFRyq
9SXfA7u6rY4Ze57y
tF8BDUAb2TPS4S5y
2KVrtvTeGSwirJ8U
gSgSva3jy8ZYYtQh
yyRPhaf2jcMR2CVF
D4qfBTjfNNs96aWR
7sZZt69NdBtFJAPg
WgZmyt24DdLAAy5v
gS9Cjex2NkKie4c2

Default generate rules

• Must have lowercase char
• Must have uppercase char
• Must have digit
• No sequences of -/_

Default chars

// exclude `l`, `o`
const DefaultLowerCaseChars = 'abcdefghijkmnpqrstuvwxyz';
// exclude 'I', 'O'
const DefaultUpperCaseChars = 'ABCDEFGHJKLMNPQRSTUVWXYZ';
// exclude '1'
const DefaultDigits = '23456789';
// symbols
const DefaultSymbols = '-_.:!';

Removed chars (for readability)

• l (lowercase letter L)
• I (capital letter i)
• 1 (digit one)
• O (capital letter o)
• 0 (digit zero)
• o (lowercase letter O)

🎨 Options

Interface

{
    /** length of the password, pass a [min, max] as length range */
    length?: number | [number, number] | undefined;
    /** custom your symbol collection */
    symbols?: string | true | undefined;
    /** custom your digit collection */
    digits?: string | undefined;
    /** custom your lowercase char collection */
    lowerCaseChars?: string | undefined;
    /** custom your uppercase char collection */
    upperCaseChars?: string | undefined;
    /** add your own char collection */
    customChars?: string | undefined;
}

Usage

const newPassword = generatePassword({
    length: [10, 20]
});
// EN3RBGJ3kG2A59SThy

Use cases

• custom password length

with fixed length

const newPassword = generatePassword({
    length: 18
});
// dJmFRniJ7gvWBq3vZp

with length range

const newPassword = generatePassword({
    length: [10, 20]
});
// EN3RBGJ3kG2A59SThy

• custom symbols

with default symbols

const newPassword = generatePassword({
    symbols: true
});
// MS2_!U9ni.4QHaMk

with custom symbols

const newPassword = generatePassword({
    symbols: '@&*^'
});
// q2V^ppADRVEC3BVb

• custom lowerCaseChars/upperCaseChars/digits

null to disabled some chars

const newPassword = generatePassword({
    digits: null
});
// fcQDHXaPWgsTtdUD

custom chars

const newPassword = generatePassword({
    lowerCaseChars: 'abc'
});
// aTZc9FC2T292Q24b

• add custom chars

const newPassword = generatePassword({
    customChars: '我是中国人'
});
// RVg59M6CKP中i国4zT