Browser-based analysis

Audio Waveform & Spectrum Analyzer

Inspect an audio file with an interactive waveform, frequency spectrum, and spectrogram. Peaks, RMS, and dominant frequencies are calculated locally in your browser.

No uploadWaveformSpectrogram

Step 1

Add an audio file

Drop one audio file here, or browse your device.

Drop audio here or click to browseMP3, WAV, M4A, AAC, FLAC, OGG, Opus · up to 500 MB

Waveform

See amplitude over time and click anywhere to audition that exact moment.

Spectrogram

See time, frequency, and energy together to spot noise, harmonics, and resonance.

Private processing

Web Audio decodes locally and the FFT never sends your source file to a server.