Fork me on GitHub

Alex Rupérez

Published: 19 Apr 13:54
I starred 1024jp/GzipSwift at GitHub.
Swift framework that enables gzip/gunzip Data using zlib
View on GitHub



Swift platform Carthage compatible SPM compatible CocoaPods compatible Build Status

GzipSwift is a framework with an extension of Data written in Swift. It enables compress/decompress gzip using zlib.

  • Requirements: OS X 10.9 / iOS 8 / watchOS 2 / tvOS 9 or later
  • Swift version: Swift 4.0.2


import Gzip

// gzip
let compressedData: Data = try! data.gzipped()
let optimizedData: Data = try! data.gzipped(level: .bestCompression)

// gunzip
let decompressedData: Data
if data.isGzipped {
    decompressedData = try! data.gunzipped()
} else {
    decompressedData = data


Manual Build

  1. Open Gzip.xcodeproj on Xcode and build Gzip framework for your target platform.
  2. Append the built Gzip.framework to your project.
  3. Go to General pane of the application target in your project. Add Gzip.framework to the Embedded Binaries section.
  4. import Gzip in your Swift file and use in your code.


GzipSwift is Carthage compatible. You can easily build GzipSwift adding the following line to your Cartfile:

github "1024jp/GzipSwift"


GzipSwift is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'GzipSwift'

Swift Package Manager

  1. Install zlib if you haven't installed yet:

    $ apt-get install zlib-dev
  2. Add this package to your package.swift.

  3. If Swift build failed with a linker error:

    • check if is in your /usr/local/lib
      • if no, reinstall zlib as step (1)
      • if yes, link the library manually by passing '-Xlinker -L/usr/local/lib' with swift build


© 2014-2017 1024jp

GzipSwift is distributed under the terms of the MIT License. See LICENSE for details.