react-native-waveforms

Cross-platform audio waveform visualizer for React Native, Expo and Web. Static, live recording and live playback modes - rendered with react-native-svg and animated on the UI thread with react-native-reanimated.

The package is rendering-only - you bring the audio data (an amplitude array, a sample callback, or a playback position) and the component draws it. No expo-av / expo-audio dependency is pulled in, so you can pair it with whatever audio engine you already use.

What’s in the box

<Waveform> - render a fixed amplitude array as bars, line, or area.
<PlayerWaveform> - adds a UI-thread-animated progress fill on top.
<RecorderWaveform> - imperative push(amplitude) API for live meters.
Three built-in renderers (bars / line / area) or pass your own.
Hover / tap interactivity with a customisable active bar.
Linear gradient fills via the WaveformColor API.
Built-in scroll vs morph transitions, fade vs grow edge effects.

Try it

Each component page ships with an interactive playground - tweak props live and watch the waveform respond.