A jQuery Plugin to make masks on form fields and HTML elements.
JavaScript HTML CSS Ruby
Latest commit ff206bc Oct 12, 2016 @igorescobar committed on GitHub Update README.md


jQuery Mask Plugin

A jQuery Plugin to make masks on form fields and HTML elements.

Build Status Code Climate

Documentation, Demos & Usage Examples



  • Lightweight (~2kb minified, ~1kb gziped).
  • Built-in support for dynamically added elements.
  • Masks on any HTML element (no need to server-side mask anymore!)!
  • HTML notation support (data-mask, data-mask-recursive, data-mask-clearifnotmatch).
  • String/Numeric/Alpha/Mixed masks.
  • Reverse mask support for masks on numeric fields.
  • Sanitization.
  • Optional digits.
  • Recursive Digits.
  • Fallback Digits.
  • Advanced mask initialization.
  • Advanced Callbacks.
  • On-the-fly mask change.
  • Mask removal.
  • Full customization.
  • Compatibility with UMD/Zepto.js/Angular.JS.
  • HTML5 placeholder support.
  • Clear the field if it not matches support.






jQuery Mask Plugin has been tested with jQuery 1.7+ on all major browsers:

  • Firefox 2+ (Win, Mac, Linux);
  • IE7+ (Win);
  • Chrome 6+ (Win, Mac, Linux, Android, iPhone);
  • Safari 3.2+ (Win, Mac, iPhone);
  • Opera 8+ (Win, Mac, Linux, Android, iPhone).

Problems or Questions?

Before opening a new issue take a look on those frequently asked questions:

Problems with old versions of Android keyboard

Negative numbers, or currency related problems

Prefix or sufix on the Mask

Add validation?

Field type number, email not working?

Want to keep the placeholder as the user types?


Did you read our docs? Yes? Cool! So now... make sure that you have a functional jsfiddle exemplifying your problem and open an issue for us. Don't know how to do it? Use this fiddle example.


  • Bug Reporting: Yes! You can contribute opening issues!
  • Documenting: Do you think that something in our docs should be better? Do you have a cool idea to increase the awesomeness? Summit your pull request with your idea!
  • Bug Fixing: No time to lose? Fix it and help others! Write some tests to make sure that everything are working propertly.
  • Improving: Open an issue and lets discuss it. Just to make sure that you're on the right track.
  • Sharing: Yes! Have we saved some of your time? Are you enjoying our mask plugin? Sharing is caring! Tweet it! Facebook it! Linkedin It(?!) :D
  • Donating: Hey, now that you don't need to worry about masks again... buy me a coffee, beer or a PlayStation 4 (Xbox One also accepted!) :o)

Unit Tests

We use QUnit and GruntJS. To run our test suit is just run: grunt test in your console or you can open those test-for*.html files inside of our test/ folder.

In case you're familiar with Docker here is how you can use it:

docker build -t jquery-mask .
CONTAINER_ID=$(docker run -d -v $PWD:/app/jquery-mask-plugin jquery-mask)
docker exec $CONTAINER_ID sh -c "npm install"
docker exec -it $CONTAINER_ID /bin/bash
grunt test


Help us!

Click here to lend your support to: jQuery Mask Plugin and make a donation at pledgie.com !

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Donators (Thanks!)