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    4.1.0 • Public • Published


    Sniffer is a browser/engine/os/device detection tool. Works both in a browser and with Node.

    Live demo (tests your browser UA string)

    Test suite

    You have three options:

    1. Default Sniffer build

    Get sniffer.js from dist/. Drop the script tag in the <head>:

    <script src="path/to/sniffer.js"></script>

    It will run automatically, collect the information on current device/os/browser and put the results in window.Sniff object (or expose it via module.exports, if available). See “Detection results” for details. Now you can do horrible things:

    if ('android' &&
    	Sniff.os.majorVersion &&
    	Sniff.os.majorVersion < 3 &&
    	! &&
    	Sniff.browser.engine=='webkit') {
    		//looks like default Android 2.x browser!

    It will also add browser name shortcode, browser engine shortcode, OS name shortcode and device features’ shortcodes to <html> tag’s className, so you can alter the styles accordingly (pretty much the Modernizr way):

    /* contrast colors for monochrome devices */ body {
    	color: black;
    	background: white;
    /* make sure code snippets are readable in Opera Mini */
    html.operamini pre code {
    	white-space: pre-wrap;

    2. Sniffer module

    Get sniffer.module.js from dist/. It exposes Sniffer function into global scope or via module.exports, if available. Compatible with Node. Just feed it a user agent string:


    It will return detection result, see “Detection results” for details.

    Also available via npm: npm install snifferjs.

    3. Pure Sniffer function

    Get sniffer.pure.js from dist/. It contains pure Sniffer function (no wrap, no autolaunch, no css classes, no exports), you decide how to use it.

    Detection results

    Sniffer returns an object which looks like this:

    	browser: {
    		fullName: String, // full human readable name
    		name: String, // shortcode
    		version: String, // semantic version, up to three parts (major.minor.patch)
    		majorVersion: Number,
    		minorVersion: Number,
    		patchVersion: Number,
    		engine: String // shortcode
    	os: {
    		fullName: String, // full human readable name
    		name: String, // shortcode
    		version: String, // semantic version, up to three parts (major.minor.patch)
    		versionName: String, // human readable version name, e.g. 'Vista', 'Mavericks', etc.
    		versionAltNames: Array, // possible alternatives, e.g. Windows NT 5.2 can be 'XP' or 'Server 2003'
    		majorVersion: Number,
    		minorVersion: Number,
    		patchVersion: Number
    	features: {
    		bw: Boolean, /* black and white (e-book readers) */
    		mobile: Boolean, /* includes phones, tablets, e-book readers, portable game consoles, etc. */
    		tv: Boolean, /* smart tv */
    		proxy: Boolean /* serverside js & rendering, like in Opera Mini */


    Class names/shortcodes in square brackets.


    • Chrome [chrome]
    • Firefox [firefox]
    • IE [ie]
    • Edge [edge]
    • Safari [safari]
    • Opera [opera]
    • Opera Mini [operamini]
    • Opera Coast [coast]
    • Nokia Browser [nokiabrowser] (!= Nokia Xpress) — Symbian Belle phones
    • Ovi Browser a.k.a Nokia Xpress [ovi] — Nokia Asha, Series40 & Series60 phones, etc.
    • Sailfish Browser [sailfishbrowser]


    • WebKit [webkit]
    • Gecko [gecko]
    • Trident [trident]
    • Presto [presto]
    • EdgeHTML [edgehtml]


    • Windows [win]
    • Mac OS X [osx]
    • Ubuntu [ubuntu]
    • Fedora [fedora]
    • Windows Phone [winphone]
    • Android [android]
    • iOS [ios]
    • BlackBerry [blackberry]
    • Sailfish OS [sailfish]
    • Symbian [symbian]
    • Kindle [kindle] (Kindle Fire should be detected as Android)
    • PlayStation [playstation]
    • PlayStation Vita [psvita]
    • Nintendo DSi [dsi]
    • Nintendo 3DS [3ds]
    • New Nintendo 3DS [n3ds]
    • Viera [viera] (Panasonic Viera smart tv)


    • Black and white [bw]
    • Mobile [mobile]
    • TV [tv]
    • Proxy broswer (serverside rendering) [proxy]


    MIT license.

    Have fun, lads.



    npm i snifferjs

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