Song structure is the order of a track's sections, the intro, verses, choruses, bridge, and drop, and how long each one runs. This tool draws the song as a waveform and marks where those sections start and end, so you can see how the track is built instead of working it out by ear.
To use it, open the tool in your browser and upload an audio file. It analyzes the track and lays the section boundaries across the waveform. It reads common files like MP3 and WAV, and there's nothing to install or sign up for.
It helps when you're learning how a song is put together, for example seeing that the chorus comes back three times, or finding the point where the second verse drops to a quieter part. It's also useful for charting a cover or planning a DJ set, since you can read the arrangement in one view.
One thing to know: section detection follows the audio's energy and repetition, so a clearly produced pop or electronic track maps more cleanly than a loose live recording. Trust your ears where a boundary looks slightly off.
The common question is "how do I find the parts of a song?" Load the track here and each section is marked on the waveform with its place and length, instead of scrubbing back and forth to find them.