howler.js 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 JavaScript library that makes playing sounds in web pages simpler and more reliable.
Open source · MIT
A JavaScript framework for making interactive music and synths in the web browser.
The short answer
Choose howler.js if you need…
- Web developers adding sound effects or background music to a browser game or site
- Developers who need to play several sounds at once and control them individually or as groups
- Projects that use sound sprites, where many short sounds are packed into one audio file
- Developers who want one API that works across many browsers, including older ones
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
| howler.js | Tone.js | |
|---|---|---|
| Type | Library | Library |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 25.4k | 14.9k |
| Setup difficulty | Beginner | Intermediate |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | JavaScript | TypeScript |
| Last code update | 12 months ago | 6 days ago |
What each one is
howler.js
Howler.js is a JavaScript audio library for websites. It uses the browser's Web Audio API by default and falls back to HTML5 Audio when needed, so developers can play, loop, fade, and control sounds through one interface. The README says it has no outside dependencies and is about 7kb gzipped.
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
howler.js
- Web developers adding sound effects or background music to a browser game or site
- Developers who need to play several sounds at once and control them individually or as groups
- Projects that use sound sprites, where many short sounds are packed into one audio file
- Developers who want one API that works across many browsers, including older ones
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
howler.js
- Single API that defaults to Web Audio and falls back to HTML5 Audio, per the README
- Supports sound sprites, multiple simultaneous sounds, and per-sound or global control
- Has no outside dependencies and is described as lightweight
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
howler.js
- People who need a finished audio player app with no coding, since this is a library for developers
- Projects that need advanced audio processing beyond what the README describes, since the README covers playback, volume, rate, seek, fading, and panning
- Server-side or non-browser audio work, since the README focuses on the modern web
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
howler.js
- The README lists browser versions that are very old, so current compatibility should be checked against the live docs
- The README is truncated, so some options and behaviors could not be fully verified here
- Requires writing JavaScript, so it is not suited to non-programmers
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
howler.js
Install with npm
npm install howlerInstall with Yarn
yarn add howlerTone.js
Install the latest stable version
npm install toneInstall the next version
npm install tone@nextFrequently asked questions
What is the difference between howler.js and Tone.js?
howler.js: A JavaScript library that makes playing sounds in web pages simpler and more reliable. Tone.js: A JavaScript framework for making interactive music and synths in the web browser. howler.js suits web developers adding sound effects or background music to a browser game or site, while Tone.js suits developers adding interactive sound or music to a web page.
Are howler.js and Tone.js free?
howler.js: Free and open source. Tone.js: Free and open source.
Which is easier to set up, howler.js or Tone.js?
howler.js is easier to get started with (rated beginner); Tone.js is rated intermediate and usually needs more setup.
Is howler.js or Tone.js more popular?
howler.js has more GitHub stars (25.4k) than Tone.js (14.9k). Popularity isn't the same as fit — check which one matches your use case above.
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.