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This password meter is based on a point system. Its main goal is to help the end-user with a stronger password.

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Important

Introducing HamedStack! For all my latest libraries, visit: Explore HamedStack. Replacements and updates are available at the link. Thank you for your support! The new version of this library is accessible via HamedStack.PasswordMeter


password

PasswordMeter

This password meter library is inspired by pointing system in here, in which the main purpose is to help the end users to have more stronger passwords.

Open Source Love npm version Downloads

npm i password-meter

yarn add password-meter
// default
console.log(JSON.stringify(new PasswordMeter().getResult('@xc5--WWb')));
// result
{
	"score" : 170,
	"status" : "strong",
	"percent" : 85
}


// with score range
console.log(JSON.stringify(new PasswordMeter({}, {
    "40": "E",  // 001 <= x <  040
    "80": "D",  // 040 <= x <  080
    "120": "C", // 080 <= x <  120
    "180": "B", // 120 <= x <  180
    "200": "A", // 180 <= x <  200
    "_": "A+"   //        x >= 200
}).getResult('@xc5--WWb')));
// result
{
	"score" : 170,
	"status" : "B",
	"percent" : 85
}

// with score range (The score range must have at least two members)
console.log(JSON.stringify(new PasswordMeter({}, {
    "100": "Low",  // 001 <= x <  100
    "_": "High"    //        x >= 100
}).getResult('@xc5--WWb')));
// result
{
	"score" : 170,
	"status" : "High",
	"percent" : 100
}

// with requirements and score range
console.log(JSON.stringify(new PasswordMeter({
    minLength: 5,
    maxLength: 10,
    uppercaseLettersMinLength: 1,
    lowercaseLettersMinLength: 2,
    numbersMinLength: 1,
    symbolsMinLength: 1,
    include: ['a', '$'],
    exclude: ['1baA$', '0xaZ$'],
    startsWith: '1',
    endsWith: '$',
    includeOne: ['$']
}, {
        "40": "veryWeak",    // 001 <= x <  040
        "80": "weak",        // 040 <= x <  080
        "120": "medium",     // 080 <= x <  120
        "180": "strong",     // 120 <= x <  180
        "200": "veryStrong", // 180 <= x <  200
        "_": "perfect"       //        x >= 200
    }).getResults(['1baAe$', '0xaZ$', 'ERT', '1pwQvF@87$','12a4A6rx90$'])));
// result
[{
		"score" : 118,
		"status" : "medium",
		"percent" : 59
	}, {
		"score" : -1,
		"status" : "needs requirement(s)",
		"errors" : ["The password must start with 1.", "The Password must exclude all the items specified."],
		"percent" : 0
	}, {
		"score" : -1,
		"status" : "needs requirement(s)",
		"errors" : ["The minimum password length is 5.", "The password must start with 1.", "The password must end with $.", "You must use at least 1 lowercase letter(s).", "You must use at least 1 number(s).", "You must use at least 1 symbol(s).", "The Password must include all the items specified.", "The Password must include at least one item specified [$]."],
		"percent" : 0
	}, {
		"score" : -1,
		"status" : "needs requirement(s)",
		"errors" : ["The Password must include all the items specified."],
		"percent" : 0
	}, {
		"score" : -1,
		"status" : "needs requirement(s)",
		"errors" : ["The maximum password length is 10."],
		"percent" : 0
	}
]    
    

// with requirements and score range and custom messages
console.log(JSON.stringify(new PasswordMeter({
    minLength: { value: 5, message: "Hey!, check minLength" },
    maxLength: { value: 10, message: "Hey!, check maxLength" },
    uppercaseLettersMinLength: { value: 1, message: "Hey!, check uppercaseLettersMinLength" },
    lowercaseLettersMinLength: { value: 2, message: "Hey!, check lowercaseLettersMinLength" },
    numbersMinLength: { value: 1, message: "Hey!, check numbersMinLength" },
    symbolsMinLength: { value: 1, message: "Hey!, check symbolsMinLength" },
    include: { value: ['a', '$'], message: "Hey!, check include(s)" },
    exclude: { value: ['1baA$', '0xaZ$'], message: "Hey!, check exclude(s)" },
    startsWith: { value: '1', message: "Hey!, check startsWith" },
    endsWith: { value: '$', message: "Hey!, check endsWith" },
    includeOne: { value: ['$'], message: "Hey!, check includeOne" }
}, {
        "40": "veryWeak",    // 001 <= x <  040
        "80": "weak",        // 040 <= x <  080
        "120": "medium",     // 080 <= x <  120
        "180": "strong",     // 120 <= x <  180
        "200": "veryStrong", // 180 <= x <  200
        "_": "perfect"       //        x >= 200
    }).getResults(['1baAe$', '0xaZ$', 'ERT', '1pwQvF@87$','12a4A6rx90$'])));
// result
[{
		"score" : 118,
		"status" : "medium",
		"percent" : 59
	}, {
		"score" : -1,
		"status" : "needs requirement(s)",
		"errors" : ["Hey!, check startsWith", "Hey!, check exclude(s)"],
		"percent" : 0
	}, {
		"score" : -1,
		"status" : "needs requirement(s)",
		"errors" : ["Hey!, check minLength", "Hey!, check startsWith", "Hey!, check endsWith", "Hey!, check lowercaseLettersMinLength", "Hey!, check numbersMinLength", "Hey!, check symbolsMinLength", "Hey!, check include(s)", "Hey!, check includeOne"],
		"percent" : 0
	}, {
		"score" : -1,
		"status" : "needs requirement(s)",
		"errors" : ["Hey!, check include(s)"],
		"percent" : 0
	}, {
		"score" : -1,
		"status" : "needs requirement(s)",
		"errors" : ["Hey!, check maxLength"],
		"percent" : 0
	}
]    

Release notes

Version 3.10.1

Adding exports block to package.json to support .cjs and .mjs.

All dependencies upddated.

Version 3.9.3

System.js module format added.

All dependencies upddated.

Version 3.9.2

For unpkg, the minified UMD package was set.

Fix bundle's name issue.

Now, you can use the library inside a browser as well as the Node.js.

// IIFE
// https://unpkg.com/password-meter@VERSION/dist/index.iife.js
// https://unpkg.com/[email protected]/dist/index.iife.js
// https://unpkg.com/[email protected]/dist/index.iife.min.js

var pswm = new PasswordMeterModule.PasswordMeter();
var result = pswm.getResult("pa$$w0rd");

and also,

// UMD
// https://unpkg.com/password-meter@VERSION/dist/index.umd.js
// https://unpkg.com/password-meter
// https://unpkg.com/[email protected]/dist/index.umd.js
// https://unpkg.com/[email protected]/dist/index.umd.min.js

var pswm = new PasswordMeterModule.PasswordMeter();
var result = pswm.getResult("pa$$w0rd");
Version 3.8.1

Fix a bug for UMD module name.

Version 3.8

No new feature or breaking changes just changing in project structure. (From Gulp to Rollup)

Version 3.7

In getResult(password: string, ignoreCase: boolean = false, skipReq: boolean = false)) skipReq was added. With this option we could provide a "score" to our users based on the current typed password (even if they aren't according to requirements).

console.log(JSON.stringify(new PasswordMeter({ 
    uniqueLettersMinLength: { value: 5, message: "Hey!, check uniqMinLength" } 
  }).getResult('aZ&4aZ&4', false, true)));
// result
{"score":124,"status":"strong","percent":62,"errors":["Hey!, check uniqMinLength"]}
Version 3.6

includeOne added. Now you can define custom special characters set.

console.log(JSON.stringify(new PasswordMeter({
		includeOne: { value: ["#", "!", "*"], message: "Hey!, check includeOne" },
	}).getResult('aZ&4aZ&4')));
// result
{"score":-1,"status":"needs requirement(s)","errors":["Hey!, check includeOne"],"percent":0}

They are looking for including at least one character from provided set, but aZ&4aZ&4 has none of them!

Version 3.5

bug fixed: uniqueLettersMinLength is optional now.

Version 3.4

uniqueLettersMinLength added. Now you can define min length for unique letters.

console.log(JSON.stringify(new PasswordMeter({
		uniqueLettersMinLength: { value: 5, message: "Hey!, check uniqMinLength" },
	}).getResult('aZ&4aZ&4')));
// result
{"score":-1,"status":"needs requirement(s)","errors":["Hey!, check uniqMinLength"],"percent":0}

They are looking for 5 unique characters but aZ&4aZ&4 needs one more!

Version 3.3
Everything except letters (a-z and A-Z) and numbers (0-9) are considered symbols, 
so the symbols are not defined in advance.
Version 3.2
An 'ignoreCase' mode is added in .getResult('',ignoreCase: boolean = false)) 
and also for .getResults([],ignoreCase: boolean = false)) as a parameter.

Obviously, the default value is 'false', It helps you to 'exclude' and 'blackList' passwords in an easier way
if you pass the 'true' then exclude: { value: ['test'], message: "Hey!, check exclude(s)" }, 
means every kind of 'test' word for example teST, TEST, Test eESt and so on are excluded.

Version 3.1
- blackList property added. eg: { blackList : ['123456','p@ssw0rd'] }
Version 3.0
- mustBe renamed to include.
- mustNotBe renamed to exclude.
- The getResult(s) includes percent.
- You can create an object as a fully customizable score range. { "score" : "message" }
  Conditions :
    1. The score range must have at least two members.
    2. The last member of the score range must be "_".
Version 2.0
- getScore() renamed to getResult() 
- getScores() renamed to getResults()

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This password meter is based on a point system. Its main goal is to help the end-user with a stronger password.

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