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A Swift Autolayout DSL for iOS & OS X
.package(url: "https://github.com/SnapKit/SnapKit.git", from: "5.0.1")

SnapKit is a DSL to make Auto Layout easy on both iOS and OS X.

Build Status Platform Cocoapods Compatible Carthage compatible

⚠️ To use with Swift 4.x please ensure you are using >= 4.0.0 ⚠️

⚠️ To use with Swift 5.x please ensure you are using >= 5.0.0 ⚠️



  • iOS 10.0+ / Mac OS X 10.12+ / tvOS 10.0+
  • Xcode 10.0+
  • Swift 4.0+


  • If you need help, use Stack Overflow. (Tag 'snapkit')
  • If you'd like to ask a general question, use Stack Overflow.
  • 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.



CocoaPods is a dependency manager for Cocoa projects. You can install it with the following command:

$ gem install cocoapods

CocoaPods 1.1.0+ is required to build SnapKit 4.0.0+.

To integrate SnapKit into your Xcode project using CocoaPods, specify it in your Podfile:

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '10.0'

target '<Your Target Name>' do
    pod 'SnapKit', '~> 5.0.0'

Then, run the following command:

$ pod install


Carthage is a decentralized dependency manager that builds your dependencies and provides you with binary frameworks.

You can install Carthage with Homebrew using the following command:

$ brew update
$ brew install carthage

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

github "SnapKit/SnapKit" ~> 5.0.0

Run carthage update to build the framework and drag the built SnapKit.framework into your Xcode project.

Swift Package Manager

Swift Package Manager is a tool for managing the distribution of Swift code. It’s integrated with the Swift build system to automate the process of downloading, compiling, and linking dependencies.

Xcode 11+ is required to build SnapKit using Swift Package Manager.

To integrate SnapKit into your Xcode project using Swift Package Manager, add it to the dependencies value of your Package.swift:

dependencies: [
    .package(url: "https://github.com/SnapKit/SnapKit.git", .upToNextMajor(from: "5.0.1"))


If you prefer not to use either of the aforementioned dependency managers, you can integrate SnapKit into your project manually.


Quick Start

import SnapKit

class MyViewController: UIViewController {

    lazy var box = UIView()

    override func viewDidLoad() {

        box.backgroundColor = .green
        box.snp.makeConstraints { (make) -> Void in



You can try SnapKit in Playground.


To try SnapKit in playground, open SnapKit.xcworkspace and build SnapKit.framework for any simulator first.




SnapKit is released under the MIT license. See LICENSE for details.


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Last commit: 1 week ago

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iOS Software Engineer @ Perry Street Software
Perry Street Software is Jack’d and SCRUFF. We are two of the world’s largest gay, bi, trans and queer social dating apps on iOS and Android. Our brands reach more than 20 million members worldwide so members can connect, meet and express themselves on a platform that prioritizes privacy and security. We invest heavily into SwiftUI and using Swift Packages to modularize the codebase.

Release Notes

SnapKit 5.0.1
1 year ago
  • Fixes a regression caused by #574
  • Adds Playground #608 (thanks to @ShivaHuang)
  • Updates SwiftPM support #615 (thanks to @maxxfrazer)
  • Adds .directionalEdges and .directionalMargins #595 (thanks to @jctrouble)
  • Make ConstraintViewDSL content priorities non mutational #586 (thanks to @nekrich)

Swiftpack is being maintained by Petr Pavlik | @ptrpavlik | @swiftpackco | API