🎵 Audio Visualizer
Generate waveform and spectrogram from any audio file. Visualize frequencies, export as SVG.
Drop an audio file here or click to browse
.mp3 .wav .flac .ogg
About this tool
An audio visualizer turns sound into pictures you can read — a waveform shows amplitude (loudness) over time, and a spectrogram maps frequencies from bass to treble across the entire track. Drop an MP3, WAV, FLAC, or OGG file to see both at once.
Use it to spot silent sections in a podcast, check where the bass hits in a mix, or find the frequency of a mystery tone. The spectrogram reveals harmonics and noise that ears alone can miss — for instance, a 1 kHz sine wave appears as a single horizontal line halfway up the display.
FAQ
What is the difference between the waveform and the spectrogram? ›
The waveform shows sound pressure (loudness) on the vertical axis vs time on the horizontal — it tells you <em>how loud</em> each moment is. The spectrogram adds a third dimension: frequency on the vertical axis, with brightness showing intensity — it tells you <em>which frequencies</em> are present at each moment and how strong they are.
Which audio formats are supported? ›
MP3, WAV, FLAC, and OGG files are supported. The tool uses the browser's built-in audio decoder, so format support matches what your browser can play. For best results, use uncompressed WAV files — lossy formats like MP3 can introduce artifacts visible in the spectrogram.
Can I use this to identify specific frequencies? ›
Yes. The spectrogram labels the frequency axis (50 Hz to 16 kHz). Pause on a bright region and trace it to the axis labels to estimate the dominant frequency. For precise measurements, use a dedicated spectrum analyzer, but for quick identification of tones, hum, or feedback, the spectrogram works well.