Superpowered Web Audio JavaScript and WebAssembly SDK

Allows developers to implement low-latency interactive audio features into web sites and web apps with a friendly JavaScript API.

Superpowered Web Audio JavaScript and WebAssembly SDK is a cutting-edge WebAssembly-based library featuring low-power, real-time latency and cross-browser audio Fx, audio I/O, music analysis and spatialization.

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Native Quality

No compromises: audio quality is identical to our "native" platform versions.

Native Performance

All data processing is performed in WebAssembly for high performance.

Time Stretching

Worlds first low-latency real-time audio time-stretching in any major web browser.

Easy API

Develop using a standard JavaScript API. Front-end developers can design high performance audio apps now. Use vanilla JS or any of your favorite frameworks.

Web Audio

Seamlessly integrates with Web Audio, supporting both the old ScriptProcessorNode and the new Audio Worklet.

Every Major Browser

Works with the offical stable versions of every major web browser. MS Edge requires version 74.

Superpowered Interactive Audio Features

Write once, run anywhere

Launching interactive audio apps on multiple web browsers and multiple devices requires powerful DSP that provides unified performance with reducing complexity. Dealing with web browser performance idiosyncrasies is frustrating and non-productive.

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Stable, real-time audio latency performance

The native API is faster than OpenSL ES, Core Audio or vDSP/Accelerate. WebAssembly processing offers similar performance.

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How Some of the Most Successful Developers and Companies Feel About Superpowered

What They're Saying

Superpowered is in a category entirely of its own. I love working with
them on hard-to-solve audio tech problems.

Superpowered's high-performance DSP APIs allowed us to write our audio
gine once and run it successfully on everything from the latest
iPads to lower-end Android devices. Without it, we wouldn't
be doing real-time, eight-voice vocal harmonies on cheap phones.

Superpowered audio is advanced cross-platform audio processing
technology, wrapped in an easy to use API. Superpowered does
all the low-level, heavy lifting that would otherwise take multiple
vendors running multiple technologies to even come close.

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Audio Solutions, Case Studies and Explainers

IOS & Android Audio Latency

Audio blog content

Audio processing

Audio files, players and codecs

Music analysis

FX (Audio Effects)

Audio Time-Scale/Pitch Modification

Dynamics