Free Online Spectrogram Generator

See the frequencies of a track as an image.

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What is this tool

AudioToolKit generates a spectrogram image from any audio file online for free, in your browser. The PNG visualizes frequency content over time — time across, frequency up, brightness for energy — making clicks, hum and pitch jumps visible at a glance. The 1600 x 500 image is rendered locally and downloaded directly, so the audio file never leaves your device.

Drag and drop your file here

MP3, WAV, M4A, AAC, OGG, FLAC, AIFF, AIF, OPUS, WMA, AMR — up to 25 MB per file

Çıktı

PNG image

Kabul edilen formatlar

.mp3, .wav, .m4a, .aac, .ogg, .flac, .aiff, .aif, .opus, .wma, .amr

Neden bu ücretsiz aracı kullanmalısınız

A spectrogram turns a recording into a picture: time across, frequency up, brightness for energy. It makes clicks, hum and pitch jumps visible at a glance — useful for analysis, memes and mix reviews.

Ücretsiz spectrogram nasıl çalışır?

1
Upload the track.
2
Press Generate.
3
Download the PNG spectrogram.

Sıkça sorulan sorular

What am I looking at?

Each column is a moment in time; brighter bands are stronger frequencies. Horizontal lines are steady tones, diagonals are pitch bends.

Is the file uploaded?

No — the image is rendered in your browser.

What resolution is the image?

1600 x 500 PNG, enough for sharing and printing.

İlgili araçlar

WaveformTurn any track into a waveform image.BPM DetectorDetect the tempo of any song in beats per minute.EqualizerShape the tone of any track with five frequency bands.