generate-pw
v1.5.11
Published
Randomly generate, strengthen, and validate cryptographically-secure passwords.
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> generate-pw
Randomly generate, strengthen, and validate cryptographically-secure passwords.
💡 About
generate-pw is a lightweight, easy-to-use library that allows you to randomly generate, strengthen & validate cryptographically-secure password(s).
- No external dependencies — Only built-in crypto methods used for secure randomization
- Highly customizable — Specify length, quantity, charsets to use, etc.
- Multi-environment support — Use in Node.js or the web browser
- Command line usable — Just type
generate-pw
, that's it
⚡ Installation
As a global utility:
$ npm install -g generate-pw
As a runtime dependency, from your project root:
$ npm install generate-pw
🔌 Importing the API
Node.js
ECMAScript*:
import pw from 'generate-pw';
CommonJS:
const pw = require('generate-pw');
*Node.js version 14 or higher required
Web
<> HTML script tag:
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/generate-pw.min.js"></script>
ES6:
(async () => {
await import('https://cdn.jsdelivr.net/npm/[email protected]/dist/generate-pw.min.js');
// Your code here...
})();
Greasemonkey
...
// @require https://cdn.jsdelivr.net/npm/[email protected]/dist/generate-pw.min.js
// ==/UserScript==
// Your code here...
💡 Note: To always import the latest version (not recommended in production!) remove the @1.5.11
version tag from the jsDelivr URL: https://cdn.jsdelivr.net/npm/generate-pw/dist/generate-pw.min.js
📋 API usage
generatePassword([options])
Generates one password if qty
option is not given, returning a string:
const password = pw.generatePassword({ length: 11, numbers: true });
console.log(password); // sample output: 'bAsZm3mq6Qn'
...or multiple passwords if qty
option is given, returning an array of strings:
const passwords = pw.generatePassword({ qty: 5, length: 8, symbols: true });
console.log(passwords);
/* sample output:
generatePassword() » Generating passwords...
generatePassword() » Passwords generated!
generatePassword() » Check returned array.
[ '[email protected]', '!,HT\\;m=', '?Lq&FV>^', 'gf}Y;}Ne', 'Stsx(GqE' ]
*/
💡 Note: If no options are passed, passwords will be 8-chars long, consisting of upper/lower cased letters.
See: Available options
generatePasswords(qty[, options])
Generates multiple passwords based on qty
given, returning an array of strings:
const passwords = pw.generatePasswords(5, { length: 3, uppercase: false });
console.log(passwords);
/* sample output:
generatePasswords() » Generating passwords...
generatePasswords() » Passwords generated!
generatePasswords() » Check returned array.
[ 'yilppxru', 'ckvkyjfp', 'zolcpyfb' ]
*/
💡 Note: If no qty
arg is passed, just one password will be generated, returned as a string.
See: Available options
strictify(password[, requiredCharTypes, options])
Modifies password
given to use at least one character of each requiredCharTypes
element passed, returning a string:
const strictPW = pw.strictify('abcdef', ['numbers', 'symbols']);
console.log(strictPW); // sample output: 'a!c2ef'
💡 Note: If no requiredCharTypes
array is passed, all available types will be required.
Available requiredCharTypes
are: ['number', 'symbol', 'lower', 'upper']
Available options (passed as object properties):
Name | Type | Description | Default Value
----------|---------|-----------------------------------|---------------
verbose
| Boolean | Show logging in console/terminal. | true
validateStrength(password[, options])
Validates the strength of a password, returning an object containing:
strengthScore
(0–100)recommendations
arrayisGood
boolean (true
ifstrengthScore
>= 80)
Example:
const pwStrength = pw.validateStrength('Aa?idsE');
console.log(pwStrength);
/* outputs:
validateStrength() » Validating password strength...
validateStrength() » Password strength validated!
validateStrength() » Check returned object for score/recommendations.
{
strengthScore: 60,
recommendations: [
'Make it at least 8 characters long.',
'Include at least one number.'
],
isGood: false
}
*/
Available options (passed as object properties):
Name | Type | Description | Default Value
----------|---------|-----------------------------------|---------------
verbose
| Boolean | Show logging in console/terminal. | true
Available options for generate*()
functions
Any of these can be passed into the options object for each generate*()
function:
Name | Type | Description | Default Value
----------------------|---------|--------------------------------------------------------------------------------|---------------
verbose
| Boolean | Show logging in console/terminal. | true
length
| Integer | Length of password(s). | 8
qty
* | Integer | Number of passwords to generate. | 1
charset
| String | Characters to include in password(s). | ''
exclude
| String | Characters to exclude from password(s). | ''
numbers
| Boolean | Allow numbers in password(s). | false
symbols
| Boolean | Allow symbols in password(s). | false
lowercase
| Boolean | Allow lowercase letters in password(s). | true
uppercase
| Boolean | Allow uppercase letters in password(s). | true
excludeSimilarChars
| Boolean | Exclude similar characters (e.g. o,0,O,i,l,1,|) in password(s). | false
strict
| Boolean | Require at least one character from each allowed character set in password(s). | false
*Only available in generatePassword([options])
since generatePasswords(qty[, options])
takes a qty
argument
💻 Command line usage
When installed globally, generate-pw can also be used from the command line. The basic command is:
$ generate-pw
Command line options
Parameter options:
--length=n Generate password(s) of n length.
--qty=n Generate n password(s).
--charset=chars Only include chars in password(s).
--exclude=chars Exclude chars from password(s).
Boolean options:
-n, --include-numbers Allow numbers in password(s).
-y, --include-symbols Allow symbols in password(s).
-L, --no-lowercase Disallow lowercase letters in password(s).
-U, --no-uppercase Disallow uppercase letters in password(s).
-S, --no-similar Exclude similar characters in password(s).
-s, --strict Require at least one character from each
allowed character set in password(s).
-q, --quiet Suppress all logging except errors.
Info commands:
-h, --help Display help screen.
-v, --version Show version number.
🏛️ MIT License
Copyright © 2024 Adam Lui & contributors.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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