AudioKit vs Tone.js
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 toolkit for making, processing, and analyzing sound in Apple-platform apps.
Open source · MIT
A JavaScript framework for making interactive music and synths in the web browser.
The short answer
Choose AudioKit if you need…
- Swift developers adding synthesizers, effects, or audio analysis to an iOS or macOS app
- Developers building music or audio tools for Apple platforms
- Developers who want to learn audio programming by working through examples in Swift Playgrounds
- Teams that only need specific AudioKit components and can add them individually
Choose Tone.js if you need…
- Developers adding interactive sound or music to a web page
- Musicians who want to prototype synths or sequences in the browser
- Students learning how Web Audio scheduling works
- Creators building browser-based music toys or generative music experiments
Side-by-side
| AudioKit | Tone.js | |
|---|---|---|
| Type | Library | Library |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 11.5k | 14.9k |
| Setup difficulty | Intermediate | Intermediate |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | Swift | TypeScript |
| Last code update | 3 months ago | 5 days ago |
What each one is
AudioKit
AudioKit is a platform for building audio features into apps on iOS, macOS, and tvOS. It covers sound synthesis, audio processing, and audio analysis, so an app can generate tones, apply effects, or measure what it hears. It is written in Swift and is distributed as a set of Swift packages that can be added to an Xcode project.
Tone.js
Tone.js is a framework built on the browser's Web Audio API for creating music in web pages. It offers DAW-style features such as a global transport for scheduling events, prebuilt synths and effects, and lower-level building blocks for custom instruments. The README describes it as aimed at both musicians and audio programmers.
Best for
AudioKit
- Swift developers adding synthesizers, effects, or audio analysis to an iOS or macOS app
- Developers building music or audio tools for Apple platforms
- Developers who want to learn audio programming by working through examples in Swift Playgrounds
- Teams that only need specific AudioKit components and can add them individually
Tone.js
- Developers adding interactive sound or music to a web page
- Musicians who want to prototype synths or sequences in the browser
- Students learning how Web Audio scheduling works
- Creators building browser-based music toys or generative music experiments
Strengths
AudioKit
- Covers synthesis, processing, and analysis in one platform
- Installable through Xcode's package collections, so individual components can be added as needed
- Has an examples repository (the AudioKit Cookbook) with recipes for common uses
Tone.js
- Familiar DAW-style concepts like a global transport and time notation such as "8n"
- Includes prebuilt synths, samplers and effects plus low-level building blocks
- Installable via npm and usable directly in HTML via unpkg, with an API site and examples
Not ideal for
AudioKit
- Non-programmers looking for a ready-made music app, since this is a library for developers
- Developers targeting Android, Windows, or Linux, since the README only lists Apple platforms
- Projects that need a stable API guarantee, since the latest release is 5.7.2 and the README does not describe its compatibility policy
Tone.js
- People who only want a standalone desktop music app, since this is a code library (reason: it requires writing JavaScript)
- Projects that need audio processing outside the browser, since it targets the Web Audio API (reason: it is browser-based)
- Complete beginners with no JavaScript experience, since the examples assume familiarity with code (reason: steeper learning curve)
Trade-offs
AudioKit
- Limited to Apple platforms according to the README
- The README does not describe the learning curve or required audio background, so expect to need some familiarity with audio concepts
- Release binaries are not provided; it is consumed as source through Swift packages
Tone.js
- Browsers require a user action before audio can start, so code must wait for Tone.start()
- Built-in synths are monophonic unless wrapped in Tone.PolySynth, which adds setup
- Relies on the Web Audio API, so behavior depends on browser support
Getting started
AudioKit
Clone the repository
git clone https://github.com/AudioKit/AudioKitTone.js
Install the latest stable version
npm install toneInstall the next version
npm install tone@nextFrequently asked questions
What is the difference between AudioKit and Tone.js?
AudioKit: A Swift toolkit for making, processing, and analyzing sound in Apple-platform apps. Tone.js: A JavaScript framework for making interactive music and synths in the web browser. AudioKit suits swift developers adding synthesizers, effects, or audio analysis to an ios or macos app, while Tone.js suits developers adding interactive sound or music to a web page.
Are AudioKit and Tone.js free?
AudioKit: Free and open source. Tone.js: Free and open source.
Is AudioKit or Tone.js more popular?
Tone.js has more GitHub stars (14.9k) than AudioKit (11.5k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to AudioKit and Tone.js?
Other options people compare them with include SwifterSwift, SVProgressHUD, howler.js.
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.