JavaScript Library for Generating Numbers Lock JS

Lock.js is a javascript library for lock number generation. It uses a string of a series of symbols as a custom code to lock/unlock something on your web application.


  • Interactive – you can change the combination by clicking, dragging, or using the mouse wheel.
  • Events – there are events when changing and when the entered code is correct or not.
  • Shuffle – You can make the lock procedurally random.
  • Customizable – Easy to change appearance via CSS.

How to make use of it:

1. Include the stylesheet lock.css and JavaScript lock.min.js on the web page.

<link rel="stylesheet" href="dist/lock.css" />
<script src="dist/lock.min.js"></script>

2. Generate a primary combination clock and specify the code to unlock it.

<div id="mylock"></div>
new Lock({
    id: 'mylock',
    code: 'LOCK',

3. Customize the symbols.

new Lock({
    id: 'mylock',
    code: 'LOCK',
    items: ['L', 'O', 'C', 'K', '🔒'],

4. Set the variety of digit wheels.

new Lock({
    id: 'mylock',
    code: 'LOCK',
    wheels: 4,

5. Set the diameter of the lock.

new Lock({
    id: 'mylock',
    code: 'LOCK',
    diameter: 50,

6. Set the period of time earlier than the code may be modified once more.

new Lock({
    id: 'mylock',
    code: 'LOCK',
    timeout: 1000,

7. Event handlers.

new Lock({
    onchange: (code, isOpen, moves) => {
      console.log(code, isOpen, moves);
    onopen: (attempts) => {
      alert(`Open in ${attempts} attempts!`);
    onclose : (attempts) => {

8. API strategies.

// shuffle the code
lock.shuffle([min], [max], [time]);

// get the current code

// set the code

// get attempts

// check if the lock is unlocked

Customizable Combination Lock, lock.js Plugin/Github

See Demo And Download

Official Website(chalda-pnuzig): Click Here

This superior jQuery/javascript plugin is developed by chalda-pnuzig. For extra Advanced usage, please go to the official website.

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