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Audio Waveform

Visualize your audio waveform

Click to upload an audio file

Scroll to zoom, drag to panZoom: 1.0x

About Audio Waveform

Audio Waveform draws an interactive visual waveform of your audio file directly in your browser using the Web Audio API and canvas — nothing is uploaded to a server. Scroll to zoom in on the waveform and drag to pan across it, then export the current view as a PNG image.

How to use Audio Waveform

  1. 1Click the upload area and select an audio file.
  2. 2The tool decodes the audio and renders its waveform on the canvas automatically.
  3. 3Scroll over the waveform to zoom in or out, and click-and-drag to pan across it.
  4. 4Click "Download PNG" to save the current waveform view as an image, or "Reset Zoom" to return to the full view.

Frequently Asked Questions

Can I zoom or pan the waveform?

Yes — scroll over the canvas to zoom in or out (centered on your cursor), and click-and-drag to pan across the waveform. Use "Reset Zoom" to return to the full view.

Can I export or download the waveform image?

Yes — click "Download PNG" to save the currently visible waveform (including your current zoom/pan) as a PNG image.

What audio formats are supported?

Any format your browser's Web Audio API can decode, such as MP3, WAV, FLAC, or OGG.

Is my file uploaded anywhere?

No. Decoding and rendering happen entirely in your browser — your file is never uploaded to a server.

Tips & Tricks

  • ✓Zoom in near a specific moment to inspect individual peaks, clipping, or silence in detail.
  • ✓The PNG export captures exactly what's on screen, so zoom in first if you need a detailed close-up image.
  • ✓Use "Reset Zoom" any time to quickly get back to the full-length overview.
  • ✓Very large audio files may take a moment to decode before the waveform appears.