# AudioKit: Swift Audio Synthesis, Processing, and Analysis for Apple Platforms > AudioKit is an open-source Swift library for audio synthesis, processing, and analysis on iOS, macOS including Catalyst, and tvOS. It is distributed through the Swift Package Index via a package collection, and the AudioKit Cookbook on GitHub provides ready-to-run recipes for common audio tasks. **AudioKit/AudioKit** — Audio synthesis, processing, & analysis platform for iOS, macOS and tvOS - Repository: https://github.com/AudioKit/AudioKit - Website: http://audiokit.io - Stars: 11,464 · Forks: 1,621 - Language: Swift - License: MIT - Published: 2026-09-21 · Updated: 2026-09-21 · Language: en - Canonical page: https://hysenlabs.com/projects/audiokit-audiokit ## What AudioKit Is and Who It Is For Audio programming on Apple platforms requires working with AVFoundation, Core Audio, and related frameworks that expose powerful but verbose APIs. AudioKit wraps these system APIs in a Swift-native library that provides synthesis, processing, and analysis without requiring developers to manage audio unit graphs by hand. AudioKit targets Swift developers building audio-centric applications on iOS, macOS (including Mac Catalyst), and tvOS. The README describes it as an audio synthesis, processing, and analysis platform. Synthesis covers generating tones, waveforms, and procedurally created audio. Processing covers effects, mixing, and transformation of existing audio. Analysis covers feature extraction and visualisation from audio input, such as detecting pitch or volume in a live signal. The AudioKit Cookbook on GitHub provides practical starting points. The Cookbook is a separate repository containing recipes for simple uses of AudioKit components, which is the fastest way for a new user to see a working example without reading reference documentation first. ## Installing AudioKit via Xcode Package Collections AudioKit is distributed through the Swift Package Index using a package collection. The installation path is inside Xcode rather than through a terminal command: 1. Select File, then Add Package Dependencies. 2. Click the + icon in the bottom-left corner of the Collections sidebar. 3. Select Add Package Collection from the pop-up menu. 4. Enter https://swiftpackageindex.com/AudioKit/collection.json as the URL and click Load. 5. Select the AudioKit packages needed and add them to the target. This collection-based approach lists all AudioKit packages in one place inside Xcode. The README notes that you can read about what each package does directly within Xcode's package browser. This covers the core AudioKit library and any of the related AudioKit packages maintained by the team. Documentation is available at audiokit.io. In-Xcode documentation can be built by selecting Product from the menu bar and choosing Build Documentation. ## Library Structure and Repository Layout The repository root contains two Package.swift manifests. Package.swift is the standard Swift Package Manager manifest. Package@swift-6.1.swift targets Swift 6.1 specifically, allowing the package to expose different source or settings for that Swift version. The Sources/ directory contains the library's Swift source code. The Tests/ directory contains the test suite. The AudioKit.playground/ directory provides a playground for interactive experimentation. The README points to docs.rs at audiokit.io for the full API reference and notes that documentation can also be generated locally inside Xcode. For getting help, the README directs users to Stack Overflow with the #AudioKit hashtag for general questions, and to the GitHub issue tracker for confirmed bugs in AudioKit itself rather than in user code. ## Limitations and Platform Constraints AudioKit is Apple-platform-only. The library targets iOS, macOS (including Catalyst), and tvOS. There are no Android bindings and no Windows support. Teams building cross-platform audio applications that include non-Apple targets cannot use AudioKit for those platforms and will need separate solutions. AudioKit does not produce Audio Unit (AU) or VST plugin binaries for use inside a digital audio workstation. The README does not document any plugin hosting or plugin export capability. Teams that need to build DAW plugins in Swift will need to work directly with Apple's Audio Unit v3 API or use frameworks specifically designed for plugin development. The last push to the repository was on 2026-07-26. The most recent releases are 5.7.2 (2026-03-31), 5.7.1 (2026-03-29), and 5.7.0 (2026-03-29), all in March 2026. The gap between the March releases and the July push suggests maintenance activity without a formal release in that period. AVFoundation, Apple's built-in audio and video framework, is the alternative for developers who prefer to work with Apple's own APIs. AVFoundation handles audio recording, playback, and basic processing. AudioKit's advantage over direct AVFoundation use is a higher-level Swift API, more synthesis and analysis utilities, and a larger collection of example code through the AudioKit Cookbook. The trade-off is a third-party dependency versus system APIs that ship with every Apple device. ## The AudioKit Ecosystem The AudioKit organisation on GitHub maintains the Cookbook and several related packages that extend the core library. These additional packages are discoverable through the Swift Package Index collection at the URL provided in the installation steps. The README describes AudioKit's homepage as audiokit.io, where the documentation and blog-style guides are published. The package description on crates.io is not applicable here since AudioKit is a Swift package, but the Swift Package Index page at swiftpackageindex.com/AudioKit tracks compatibility with Swift and Apple platform versions. For sponsors and contributors, the README directs interested parties to Aure's GitHub Sponsors page. The project acknowledges individual and organisational sponsors in the repository. Contribution follows the standard GitHub issue-and-pull-request workflow documented in the .github/ directory. ## Maintenance and License The last push to the AudioKit repository was on 2026-07-26. Releases 5.7.0, 5.7.1, and 5.7.2 all shipped in March 2026. The three-release sequence within three days in March suggests a rapid patch cycle around a particular fix. The MIT license covers AudioKit itself. MIT permits commercial use, modification, distribution, and private use without requiring source disclosure, which means AudioKit can be included in commercial App Store applications without legal complications on the licensing side. ## Conclusion AudioKit suits Swift developers on Apple platforms who need audio synthesis, signal processing, or audio analysis in a native Swift framework. It is not appropriate for cross-platform projects that include Android or Windows targets, and it does not provide a VST or AU plugin format for use inside a digital audio workstation. The last push was on 2026-07-26. Teams that need long-term stability should verify their target Xcode and Swift version against the Package.swift and Package@swift-6.1.swift files in the repository before adopting a specific AudioKit release. ## FAQ ### What is AudioKit and what does it do? AudioKit is a Swift library for audio synthesis, processing, and analysis on iOS, macOS, and tvOS. It wraps Apple's Core Audio and AVFoundation APIs in a higher-level Swift interface. The AudioKit Cookbook on GitHub provides working examples for common audio tasks. ### How does AudioKit compare to using AVFoundation directly? AVFoundation is Apple's built-in framework for audio and video; AudioKit is a third-party Swift library built on top of Apple's audio APIs. AudioKit provides higher-level synthesis, processing, and analysis utilities and a larger collection of examples through the Cookbook. Using AVFoundation directly avoids the external dependency but requires more boilerplate for tasks like synthesis and signal analysis. ### Does AudioKit support VST or AU plugin formats? The AudioKit README does not document VST or AU plugin export capabilities. AudioKit is a framework for building audio applications on Apple platforms, not a tool for creating DAW plugin binaries. Developers who need to build Audio Unit v3 plugins should work with Apple's Audio Unit API directly. ## Sources - [AudioKit/AudioKit on GitHub](https://github.com/AudioKit/AudioKit) - [License: MIT](https://github.com/AudioKit/AudioKit/blob/main/LICENSE) - [Project website](http://audiokit.io) - [README](https://github.com/AudioKit/AudioKit/blob/main/README.md) - [Releases](https://github.com/AudioKit/AudioKit/releases) --- Hysen Labs editorial analysis, written from the project's own repository and release notes. Cite the canonical page: https://hysenlabs.com/projects/audiokit-audiokit