I'm doing a large amount of music library updating and de-duplicating and evaluating, and I would like a piece of software that would allow me to quickly be able to view a waveform of a selected audio file.

I currently use Fission for editing, but it loads slower than I would like, and I have no need for the actual editing aspect of the software. Additionally, Garageband is antagonistically slow and too hard to examine the waveform like I would like.

Is there software, or maybe something like a QuickLook plugin, that would allow me to select an audio file, and quickly get a rendered version of the waveform data within the file?

Loudness levels labels are appreciated, but not required.


It's not a Quick Look plugin, but Sound Studio it is fairly lightweight, and displays the waveform:

However, I'm afraid I don't think you'll find the waveform itself to be particularly useful for determining duplicate songs.

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Try Audacity. It doesn't seem to heavyweight for just waveform viewing.

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  • 1
    Audacity is free. I don't find it all that well-designed or useful, but if all you want to do is view waveforms, why not give it a try? audacity.sourceforge.net – user9290 Aug 24 '11 at 0:59

Checkout Snapper 2 from Audio Ease:


I was looking for the same thing but this is the only all-in-one, finder level waveform viewer I could find.

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  • Anything newer & better? – Dan May 3 '17 at 10:54

The 'lightest' app I've found to see a waveform is Nulloy


But I wish there were a Quick Look plugin.

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  • Good, but been buggy for me for years. – Dan May 3 '17 at 10:54

I have tried two options:

enter image description here

https://github.com/seagirl/QLWaveForm/releases/tag/v1.0 << that worked

https://github.com/ideoforms/qlspectrogram << Doesn't work on catalina

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