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Key & BPM Lab

Browser-based audio tools for detecting song key and BPM, changing pitch or tempo, tapping beats, using a metronome, and editing audio.

launched 9d ago

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Launched on 8 September 2026 on Firsto, in the week of 7 September 2026.

What they say it does

Find a song's key and BPM, change pitch or tempo, tap a beat, use a metronome, and edit audio with free browser-based tools from Key & BPM Lab.