pwdkit

pwdkit is a lightweight password toolkit that lets you:

• Analyze password strength (Inspired: passwordmeter)
• Get multiple password suggestions with scoring based on customizable rules
• Check if the password matches with the policy that is set

Installation

npm install pwdkit

Sample Usage

const { PasswordToolkit } = require("pwdkit");

const pwd_instance = new PasswordToolkit({
  minimum_characters: 10,
  containsUpperCase: true,
  containsLowerCase: true,
  containsNumbers: true,
  containsSpecialCharacters: true,
  allowedSpecialCharacters: ["*", "^", "#", "@"],
});

console.log(pwd_instance.analyse("yzmk1W1Q^v"));
// Output: { score: 92 }

console.log(pwd_instance.isPolicySatisfied("yzmk1W1Qv"));
// Output: false

console.log(pwd_instance.getPolicy());
// Output:
{
  minimum_characters: 10,
  containsUpperCase: true,
  containsLowerCase: true,
  containsNumbers: true,
  containsSpecialCharacters: true,
  allowedSpecialCharacters: ["*", "^", "#", "@"],
}

console.log(pwd_instance.getSuggestions(3));
// Example Output:
[
  { password: 'W@q@GJm43t', score: 100 },
  { password: 'g5KxFjh^2V', score: 96 },
  { password: 'U9Y*Q#^4@n', score: 100 }
]

ES Modules (TypeScript or modern bundlers)

import { PasswordToolkit } from "pwdkit";

const toolkit = new PasswordToolkit({
  minimum_characters: 12,
  allowedSpecialCharacters: ["!", "%", "#"]
});

const result = toolkit.analyse("MyS3cur3#Pass");
console.log(result); // { score: ... }

const is_pwd_matches_policy = toolkit.isPolicySatisfied("MyS3cur3#Pass"));
// Output: true

console.log(toolkit.getPolicy());
// Output:
{
  minimum_characters: 12,
  containsUpperCase: true,
  containsLowerCase: true,
  containsNumbers: true,
  containsSpecialCharacters: true,
  allowedSpecialCharacters: ["!", "%", "#"],
}

const suggestions = toolkit.getSuggestions(5);
console.log(suggestions);

Options / Policy

Options that can be passed to PasswordToolkit

Option	Type	Default	Description
minimum_characters	number	8	Minimum password length
containsUpperCase	boolean	true	Require uppercase letters
containsLowerCase	boolean	true	Require lowercase letters
containsNumbers	boolean	true	Require digits
containsSpecialCharacters	boolean	true	Require special characters
allowedSpecialCharacters	string[]	Default set (!@#$%^&*()_+[]{} etc.)	Custom special characters

All the above keys are optional. if not provided it uses the default one.