SnapKit vs SwifterSwift
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
A Swift library that makes writing iOS and macOS Auto Layout constraints shorter and easier to read.
Open source · MIT
A library of over 500 ready-made Swift extensions that add handy helper methods to common types.
The short answer
Choose SnapKit if you need…
- Swift developers building UIKit or AppKit interfaces in code rather than Interface Builder
- Teams who want more readable Auto Layout code
- Developers maintaining an existing project that already uses SnapKit
Choose SwifterSwift if you need…
- Swift developers building iOS or macOS apps who want common helper methods ready to use
- Teams that want to pick only the extension groups they need, such as UIKit or CoreLocation
- Developers who prefer Swift Package Manager, CocoaPods, or Carthage for dependencies
Side-by-side
| SnapKit | SwifterSwift | |
|---|---|---|
| Type | Library | Library |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 20.3k | 15.3k |
| Setup difficulty | Intermediate | Beginner |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | Swift | Swift |
| Last code update | 4 months ago | 4 days ago |
What each one is
SnapKit
SnapKit is a Swift library for building app screen layouts with Apple's Auto Layout system. Instead of writing long, verbose constraint code, you describe positions and sizes in a short, chained syntax. It is aimed at developers building iOS, macOS, or tvOS apps.
SwifterSwift
SwifterSwift is a collection of more than 500 Swift extensions, which are small added methods for built-in types like strings, arrays, and UIKit or Cocoa classes. It is meant to save developers from writing the same helper code again and again across iOS, macOS, tvOS, watchOS, Linux, and Android projects.
Best for
SnapKit
- Swift developers building UIKit or AppKit interfaces in code rather than Interface Builder
- Teams who want more readable Auto Layout code
- Developers maintaining an existing project that already uses SnapKit
SwifterSwift
- Swift developers building iOS or macOS apps who want common helper methods ready to use
- Teams that want to pick only the extension groups they need, such as UIKit or CoreLocation
- Developers who prefer Swift Package Manager, CocoaPods, or Carthage for dependencies
Strengths
SnapKit
- Short, chainable syntax compared with raw Auto Layout constraint code
- Released under the permissive MIT license
- Includes an online documentation site and FAQ linked from the README
SwifterSwift
- Covers a large range of types, with more than 500 extensions organized by module
- Supports several dependency managers, including Swift Package Manager, CocoaPods, Carthage, and Accio
- Licensed under MIT, which allows free use in commercial projects
Not ideal for
SnapKit
- Developers who build their interfaces visually in Storyboards or SwiftUI, since the README only covers code-based Auto Layout
- Projects that must run on older OS or Xcode versions than the README's stated requirements, because it requires iOS 14.0+, macOS 12.0+, tvOS 14.0+, Xcode 26.0+ and Swift 6.0+
SwifterSwift
- Beginners still learning Swift basics, since the library assumes you can read and call extensions yourself
- Projects that must support Swift versions older than the ones listed in the requirements, because the README points to older tagged releases instead
- Anyone who wants a full app or framework rather than a set of helper methods
Trade-offs
SnapKit
- Requires recent toolchains (Xcode 26.0+, Swift 6.0+), which may not suit older projects
- The README is brief and focuses on installation and one example, so advanced usage must be learned from the external docs
- Only supports Apple platforms
SwifterSwift
- Helper methods add to your dependency footprint, and you should check each one fits your needs
- Requirements are fairly recent, such as iOS 15.0+ and Swift 6.0+, so older projects may not be able to upgrade easily
- The README is truncated here, so details of individual extensions and the latest release notes were not verified
Getting started
SnapKit
Add SnapKit to Package.swift dependencies
.package(url: "https://github.com/SnapKit/SnapKit.git", .upToNextMajor(from: "6.0.0"))SwifterSwift
CocoaPods: add to Podfile (all extensions)
pod 'SwifterSwift'Carthage: add to Cartfile
github "SwifterSwift/SwifterSwift" ~> 6.0Frequently asked questions
What is the difference between SnapKit and SwifterSwift?
SnapKit: A Swift library that makes writing iOS and macOS Auto Layout constraints shorter and easier to read. SwifterSwift: A library of over 500 ready-made Swift extensions that add handy helper methods to common types. SnapKit suits swift developers building uikit or appkit interfaces in code rather than interface builder, while SwifterSwift suits swift developers building ios or macos apps who want common helper methods ready to use.
Are SnapKit and SwifterSwift free?
SnapKit: Free and open source. SwifterSwift: Free and open source.
Which is easier to set up, SnapKit or SwifterSwift?
SwifterSwift is easier to get started with (rated beginner); SnapKit is rated intermediate and usually needs more setup.
Is SnapKit or SwifterSwift more popular?
SnapKit has more GitHub stars (20.3k) than SwifterSwift (15.3k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to SnapKit and SwifterSwift?
Other options people compare them with include Masonry, Muuri, Kingfisher, SVProgressHUD, Eureka.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.