180 Running Music Editor Cadence · Drum overlay · Local export

180 Running Music Editor

Import a song and its tempo (BPM) is detected automatically. Stretch the beat to your running cadence (180 by default, anything from 50 to 200), overlay footstep or hand-drum beats, and merge several tracks into one MP3. Everything runs locally in your browser, your audio is never uploaded.

1

Import Audio

Drop in or pick a wav / mp3 / m4a / aac file. The tempo is detected on import and the waveform and duration are shown.

2

Target Cadence

Pick a target cadence between 50 and 200 (presets include 120 / 140 / 165 / 170 / 180 / 190) and one of five beat sounds, footstep, hand drum, EDM, drum sticks or metronome, with volume relative to the song.

3

Adjust and merge-export as MP3

Choose nearest cadence (smallest tempo shift, beats stay aligned with the cadence) or exact cadence, or add drums only without changing speed. Preview the result, then merge several songs in order into a single MP3.

merge them into one MP3

FAQ

What is a good running cadence, and why 180?

Most coaches recommend a cadence of 170–190; 180 is the widely cited sweet spot: quicker, shorter steps land closer to your center of gravity, reducing impact and injury risk. This tool adjusts music to 180 by default, or any cadence between 50 and 200.

How do I change a song to 180 cadence?

Import a song and the BPM is detected automatically. Pick a target cadence (180 by default) and a beat sound, click Adjust, and the tempo is changed to your cadence with beat drums overlaid. Multiple songs can be merged into one MP3 on the Export page.

Is my audio uploaded to a server?

No. BPM detection, tempo change, drum overlay and MP3 encoding all run locally in your browser — your songs never leave your device.

What is the difference between nearest and exact cadence?

Exact changes the tempo straight to the target. Nearest first shifts to the closest tempo that divides the cadence evenly (e.g. 52 → 60, 3 whole steps per beat) for a smaller speed change and better quality.