Drop in your tracks, trim each one, and lock them all to a single tempo. Pitch and quality stay exactly as they were — only the timing moves. Everything runs in your browser; nothing is uploaded.
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Add your tracks
Drag files here or click to browse — MP3, WAV, M4A, AAC, FLAC, OGG
Set each track’s start point on the first beat. That’s what lines the tracks up — every track plays from its start handle, on one shared clock. Zoom in and leave Snap on to land exactly on the transient.
Target tempo
BPM
Tip: if a detected BPM looks doubled or halved, use ×2 or ÷2 — or just type the correct value.
Built by iMAP. Also try Count Me In.