🗺 User-Agent Parser based upon ua-parser.js

What's New

UAParserSwift - 1.2.1


Released on 2020-11-22


  • #4 [NEW] Introduced macOS Catalina (10.15) support


User-Agent Parser based upon ua-parser.js

UAParserSwift is a Swift-based library to parse User Agent string; it's a port of ua-parser-js by Faisal Salman created to be mainly used in Swift Server Side applications (Kitura, Vapor etc.). You can however use it on client side, all Apple's platforms are supported (iOS, macOS, tvOS and watchOS).

This library aims to identify detailed type of web browser, layout engine, operating system, cpu architecture, and device type/model, entirely from user-agent string with a relatively small footprint.

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How it works


Usage of UAParserSwift is pretty simple; just allocate an UAParser object along with the User-Agent string you want to parse.

let parser = UAParser(agent: "Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A293 Safari/6531.22.7")

// Then call properties you want to read.
// Parsed data are cached and evaluated lazily in order to
// get the best performances.

let identified_os = parser.os
let identified_device = parser.device
let identified_engine = parser.engine
let identified_os = parser.os
let identified_cpu = parser.cpu

Now you can call one of these properties to get parsed data (all properties are lazy created in order to keep parser lightweight):

  • .browser: return a Browser object with the browser's properties: name, version
  • .device: return a Device object with device's informations: vendor,type,model
  • .engine: return an Engine object with information about browser's engine: name,version
  • .os: return an OS object with the information about host operation system: name,version
  • .cpu: return a CPU object with the informations about host's device architecture: identifier

Supported Browsers


Amaya, Android Browser, Arora, Avant, Baidu, Blazer, Bolt, Bowser, Camino, Chimera,
Chrome [WebView], Chromium, Comodo Dragon, Conkeror, Dillo, Dolphin, Doris, Edge,
Epiphany, Fennec, Firebird, Firefox, Flock, GoBrowser, iCab, ICE Browser, IceApe,
IceCat, IceDragon, Iceweasel, IE[Mobile], Iron, Jasmine, K-Meleon, Konqueror, Kindle,
Links, Lunascape, Lynx, Maemo, Maxthon, Midori, Minimo, MIUI Browser, [Mobile] Safari,
Mosaic, Mozilla, Netfront, Netscape, NetSurf, Nokia, OmniWeb, Opera [Mini/Mobi/Tablet],
PhantomJS, Phoenix, Polaris, QQBrowser, RockMelt, Silk, Skyfire, SeaMonkey, Sleipnir,
SlimBrowser, Swiftfox, Tizen, UCBrowser, Vivaldi, w3m, WeChat, Yandex

Version: Determined dynamically

Supported Devices


console, mobile, tablet, smarttv, wearable, embedded


Acer, Alcatel, Amazon, Apple, Archos, Asus, BenQ, BlackBerry, Dell, GeeksPhone,
Google, HP, HTC, Huawei, Jolla, Lenovo, LG, Meizu, Microsoft, Motorola, Nexian,
Nintendo, Nokia, Nvidia, OnePlus, Ouya, Palm, Panasonic, Pebble, Polytron, RIM,
Samsung, Sharp, Siemens, Sony[Ericsson], Sprint, Xbox, Xiaomi, ZTE

Model: Determined dinamically

Supported Engines


Amaya, EdgeHTML, Gecko, iCab, KHTML, Links, Lynx, NetFront, NetSurf, Presto,
Tasman, Trident, w3m, WebKit

Engine Version: Determined dinamically

Supported OSs


AIX, Amiga OS, Android, Arch, Bada, BeOS, BlackBerry, CentOS, Chromium OS, Contiki,
Fedora, Firefox OS, FreeBSD, Debian, DragonFly, Gentoo, GNU, Haiku, Hurd, iOS,
Joli, Linpus, Linux, Mac OS, Mageia, Mandriva, MeeGo, Minix, Mint, Morph OS, NetBSD,
Nintendo, OpenBSD, OpenVMS, OS/2, Palm, PC-BSD, PCLinuxOS, Plan9, Playstation, QNX, RedHat,
RIM Tablet OS, RISC OS, Sailfish, Series40, Slackware, Solaris, SUSE, Symbian, Tizen,
Ubuntu, UNIX, VectorLinux, WebOS, Windows [Phone/Mobile], Zenwalk

Version: Determined dinamically

Supported Architectures


68k, amd64, arm[64], avr, ia[32/64], irix[64], mips[64], pa-risc, ppc, sparc[64]

Unit Tests

Unit Tests are available under the Tests directory; actually they are the same tests available for ua-parser-js and all are passed successfully.


This library is written for Swift 4.x.

Swift Package Manager (Vapor or any server side framework)

Meow requires Swift 4.0 or greater to work. This is the official way to install packages for Swift Server Side. In your Package.swift, add the following to your dependencies array:

.package(url: "", from: "1.0.1")

To your target, add the "UAParserSwift" dependency.

.target(name: "Application", dependencies: ["UAParserSwift", ...])


  1. Add the pod UAParserSwift to your Podfile.
pod 'UAParserSwift'

Run pod install from Terminal, then open your app's .xcworkspace file to launch Xcode.


  • If you need help or you'd like to ask a general question, open an issue.
  • If you found a bug, open an issue.
  • If you have a feature request, open an issue.
  • If you want to contribute, submit a pull request.


Dual licensed under GPLv2 & MIT

Copyright © 2017 Daniele Margutti Original ua-parser-js Copyright: Copyright © 2012-2016 Faisal Salman

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

This software is licensed under MIT License.

Consider ❤️ support the development of this library!

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Last updated: Wed Mar 29 2023 08:50:46 GMT-0500 (GMT-05:00)