A Swift framework for parsing, formatting and validating international phone numbers. Inspired by Google's libphonenumber.
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PhoneNumberKit Platform GitHub Workflow Status (with branch) Version Carthage compatible


Swift 5.3 framework for parsing, formatting and validating international phone numbers. Inspired by Google's libphonenumber.


☎️ Validate, normalize and extract the elements of any phone number string.
💯 Simple Swift syntax and a lightweight readable codebase.
🏁 Fast. 1000 parses -> ~0.4 seconds.
📚 Best-in-class metadata from Google's libPhoneNumber project.
🏆 Fully tested to match the accuracy of Google's JavaScript implementation of libPhoneNumber.
📱 Built for iOS. Automatically grabs the default region code from the phone.
📝 Editable (!) AsYouType formatter for UITextField.
🇺🇸 Convert country codes to country names and vice versa


Import PhoneNumberKit at the top of the Swift file that will interact with a phone number.

import PhoneNumberKit

All of your interactions with PhoneNumberKit happen through a PhoneNumberKit object. The first step you should take is to allocate one.

A PhoneNumberKit instance is relatively expensive to allocate (it parses the metadata and keeps it in memory for the object's lifecycle), you should try and make sure PhoneNumberKit is allocated once and deallocated when no longer needed.

let phoneNumberKit = PhoneNumberKit()

To parse a string, use the parse function. The region code is automatically computed but can be overridden if needed. PhoneNumberKit automatically does a hard type validation to ensure that the object created is valid, this can be quite costly performance-wise and can be turned off if needed.

do {
    let phoneNumber = try phoneNumberKit.parse("+33 6 89 017383")
    let phoneNumberCustomDefaultRegion = try phoneNumberKit.parse("+44 20 7031 3000", withRegion: "GB", ignoreType: true)
catch {
    print("Generic parser error")

If you need to parse and validate a large amount of numbers at once, PhoneNumberKit has a special, lightning fast array parsing function. The default region code is automatically computed but can be overridden if needed. Here you can also ignore hard type validation if it is not necessary. Invalid numbers are ignored in the resulting array.

let rawNumberArray = ["0291 12345678", "+49 291 12345678", "04134 1234", "09123 12345"]
let phoneNumbers = phoneNumberKit.parse(rawNumberArray)
let phoneNumbersCustomDefaultRegion = phoneNumberKit.parse(rawNumberArray, withRegion: "DE",  ignoreType: true)

PhoneNumber objects are immutable Swift structs with the following properties:

phoneNumber.type // e.g Mobile or Fixed

Formatting a PhoneNumber object into a string is also very easy

phoneNumberKit.format(phoneNumber, toType: .e164) // +61236618300
phoneNumberKit.format(phoneNumber, toType: .international) // +61 2 3661 8300
phoneNumberKit.format(phoneNumber, toType: .national) // (02) 3661 8300



To use the AsYouTypeFormatter, just replace your UITextField with a PhoneNumberTextField (if you are using Interface Builder make sure the module field is set to PhoneNumberKit).

You can customize your TextField UI in the following ways

  • withFlag will display the country code for the currentRegion. The flagButton is displayed in the leftView of the text field with it's size set based off your text size.
  • withExamplePlaceholder uses attributedPlaceholder to show an example number for the currentRegion. In addition when withPrefix is set, the country code's prefix will automatically be inserted and removed when editing changes.

PhoneNumberTextField automatically formats phone numbers and gives the user full editing capabilities. If you want to customize you can use the PartialFormatter directly. The default region code is automatically computed but can be overridden if needed (see the example given below).

class MyGBTextField: PhoneNumberTextField {
    override var defaultRegion: String {
        get {
            return "GB"
        set {} // exists for backward compatibility
let textField = PhoneNumberTextField()

PartialFormatter().formatPartial("+336895555") // +33 6 89 55 55

You can also query countries for a dialing code or the dialing code for a given country

phoneNumberKit.countries(withCode: 33)
phoneNumberKit.countryCode(for: "FR")

Customize Country Picker

You can customize colors and fonts on the Country Picker View Controller by overriding the property "withDefaultPickerUIOptions"

let options = CountryCodePickerOptions(
    backgroundColor: UIColor.systemGroupedBackground
    separatorColor: UIColor.opaqueSeparator
    textLabelColor: UIColor.label
    textLabelFont: .preferredFont(forTextStyle: .callout)
    detailTextLabelColor: UIColor.secondaryLabel
    detailTextLabelFont: .preferredFont(forTextStyle: .body)
    tintColor: UIView().tintColor
    cellBackgroundColor: UIColor.secondarySystemGroupedBackground
    cellBackgroundColorSelection: UIColor.tertiarySystemGroupedBackground
textField.withDefaultPickerUIOptions = options

Or you can change it directly:

textField.withDefaultPickerUIOptions.backgroundColor = .red

Please refer to CountryCodePickerOptions for more information about usage and how it affects the view.

Need more customization?

You can access the metadata powering PhoneNumberKit yourself, this enables you to program any behaviours as they may be implemented in PhoneNumberKit itself. It does mean you are exposed to the less polished interface of the underlying file format. If you program something you find useful please push it upstream!

phoneNumberKit.metadata(for: "AU")?.mobile?.exampleNumber // 412345678

[Preferred] Setting up with Swift Package Manager

The Swift Package Manager is now the preferred tool for distributing PhoneNumberKit.

From Xcode 11+ :

  1. Select File > Swift Packages > Add Package Dependency. Enter in the "Choose Package Repository" dialog.
  2. In the next page, specify the version resolving rule as "Up to Next Major" from "3.7.0".
  3. After Xcode checked out the source and resolving the version, you can choose the "PhoneNumberKit" library and add it to your app target.

For more info, read Adding Package Dependencies to Your App from Apple.

Alternatively, you can also add PhoneNumberKit to your Package.swift file:

dependencies: [
    .package(url: "", from: "3.7.0")

Setting up with Carthage

Carthage is a decentralized dependency manager that automates the process of adding frameworks to your Cocoa application.

You can install Carthage with Homebrew using the following command:

$ brew update
$ brew install carthage

To integrate PhoneNumberKit into your Xcode project using Carthage, specify it in your Cartfile:

github "marmelroy/PhoneNumberKit"

Setting up with CocoaPods

pod 'PhoneNumberKit', '~> 3.7'
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