mobile-detect.js

A loose port of Mobile-Detect to JavaScript.

This script will detect the device by comparing patterns against a given User-Agent string. You can find out information about the device rendering your web page:

mobile or not
if mobile, whether phone or tablet
operating system
Mobile Grade (A, B, C)
specific versions (e.g. WebKit)

Current master branch is using detection logic from Mobile-Detect@2.8.32

Live Demo

@zeno created a very nice live-demo. See it in action with your device:

Demo

Another Demo/check (though without any styling) can be found here.

Warning

As mentioned later, "User-Agent" based detection is not a reliable solution in most cases, because:

The rules (regular expressions) are constantly out-dated and incomplete
You have to update the detection code continuously
There are other ways to detect how your web application should behave:
- feature detection, e.g. Modernizr
- Media Queries, examples at http://mediaqueri.es/
Maybe there are some libraries out there (which are probably not free) doing a more reliable job

If you still want to (or have to) use this library, you should always encapsulate it with your own code, because chances a very high that you have to tweak the behaviour a bit or are not satisfied with the result of mobile-detect.js. Don't spread usage of MobileDetect all over your own code! As you can see in the issues, there are some "bugs", feature-requests, pull-requests where people are not so happy how MobileDetect works. But I cannot change its behaviour from version to version, even if this was reasonable from new users' point of view. I hope you show understanding.

At least there is a way to monkey-patch the library (see "Extending" below).

Usage

Browser

<script src="mobile-detect.js"></script>
<script>
    var md = new MobileDetect(window.navigator.userAgent);
    // ... see below
</script>

Node.js / Express

var MobileDetect = require('mobile-detect'),
    md = new MobileDetect(req.headers['user-agent']);
// ... see below

General

var md = new MobileDetect(
    'Mozilla/5.0 (Linux; U; Android 4.0.3; en-in; SonyEricssonMT11i' +
    ' Build/4.1.A.0.562) AppleWebKit/534.30 (KHTML, like Gecko)' +
    ' Version/4.0 Mobile Safari/534.30');

// more typically we would instantiate with 'window.navigator.userAgent'
// as user-agent; this string literal is only for better understanding

console.log( md.mobile() );          // 'Sony'
console.log( md.phone() );           // 'Sony'
console.log( md.tablet() );          // null
console.log( md.userAgent() );       // 'Safari'
console.log( md.os() );              // 'AndroidOS'
console.log( md.is('iPhone') );      // false
console.log( md.is('bot') );         // false
console.log( md.version('Webkit') );         // 534.3
console.log( md.versionStr('Build') );       // '4.1.A.0.562'
console.log( md.match('playstation|xbox') ); // false

More Info ...

There is some documentation generated by JSDoc:

http://hgoebl.github.io/mobile-detect.js/doc/MobileDetect.html

Side Effects

Script creates the global property MobileDetect.

Modernizr Extension

When using Modernizr, you can include mobile-detect-modernizr.js. It will add the CSS classes mobile, phone, tablet and mobilegradea if applicable.

You can easily extend it, e.g. android, iphone, etc.

Size (bytes)

development: 68711
minified: 38333
minified + gzipped: 16040 (cat mobile-detect.min.js | gzip -9f | wc -c)

Installation

Bower

$ bower install hgoebl/mobile-detect.js --save

Node.js / npm

$ npm install mobile-detect --save

CDN - jsDelivr

<script src="//cdn.jsdelivr.net/npm/mobile-detect@1.4.2/mobile-detect.min.js"></script>

cdnjs - cdnjs.com

<script src="//cdnjs.cloudflare.com/ajax/libs/mobile-detect/1.4.2/mobile-detect.min.js"></script>

Extending/Modifying Behaviour

Though it is not recommended to rely on internal methods or structures of MobileDetect, you can alter the behaviour by replacing particular internal methods with your own implementations. If you feel like this is the only possibility, then go ahead and have a look at the source code and examples in tests/spec/MobileDetectSpec.js (search for "Extensibility").

Alternatives / Infos

Often device detection is the first solution in your mind. Please consider looking for other solutions like media queries and feature detection (e.g. w/ Modernizr). Maybe there are better (simpler, smaller, faster) device detection libraries, so here you have a list (order has no meaning apart from first element):

Modernizr In most cases the better solution: don't use knowledge about device and version, but detect features (touch, canvas, ...)
Mozilla Hacks - User-Agent detection, history and checklist
Mobile-Detect A lightweight PHP class for detecting mobile devices (including tablets). This is the "source" of this JavaScript project and if you use PHP on your server you should use it!
Detect Mobile Browsers Open source mobile phone detection in many languages and for Webservers (Apache, nginx, IIS). mobile-detect.js uses the code of this library as a fallback in case of incomplete detection regular expressions.
sebarmeli / JS-Redirection-Mobile-Site JS to handle the redirection to the mobile version of your site
dmolsen/Detector Detector is a simple, PHP- and JavaScript-based browser- and feature-detection library that can adapt to new devices & browsers on its own without the need to pull from a central database of browser information.
matthewhudson/device.js Conditional CSS and/or JavaScript based on device operating system, orientation and type
brendanlim/mobile-fu Automatically detect mobile requests from mobile devices in your Rails application.
FormFactor FormFactor helps you customize your web app for different form factors, e.g. when you make "the mobile version", "the TV version", etc.
UAParser.js Lightweight JavaScript-based User-Agent String Parser
MobileESP - Easily detect mobile web site visitors
WURFL
Handset and Tablet Detection
Search on microjs.com

Mobile-Usage Statistics

If you have to provide statistics about how many and which mobile devices are hitting your web-site, you can generate statistics (data and views) with hgoebl/mobile-usage. There are many hooks to customize statistical calculation to your needs.

License

MIT-License (see LICENSE file).

Contributing

Your contribution is welcome. If you want new devices to be supported, please contribute to Mobile-Detect instead.

To run generate-script it is necessary to have Mobile-Detect as a sibling directory to mobile-detect.js/. (I tried to use git subtree but had some problems on Mac OS X - probably my fault...)

fork or clone serbanghita/Mobile-Detect
fork hgoebl/mobile-detect.js
run npm install
create branch
make changes and run grunt (needs PHP >= 5.4 in your path)
run browser test (tests/SpecRunner.html)
commit, push to your branch
create pull request

Testing

Browser

Open tests/SpecRunner.html in different browsers.

Node.js

$ npm test
$ # or
$ grunt jasmine_node

Donations

If you want, you can donate to Mobile-Detect.

TODO

Extend RegEx patterns so that test passes

License

sparksworld/mobile-detect.js

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