Merge Audio: Join Multiple Tracks into One

Add several audio files, trim each one, put them in order and join them into a single file with an optional crossfade. Runs in your browser, nothing is uploaded. Your files stay on your device and are never uploaded.

How to use it

Drop two or more audio files onto the page, or choose them from your device.
Drag the handles on each track to trim it, use the arrows to change the order and set a crossfade if you want a smooth transition.
Press Play to hear the merged result, then save it as MP3, WAV or M4A.

Frequently asked questions

Can I trim each song before joining?

Yes. Every track has its own waveform with start and end handles, and only the selected part is merged.

What does crossfade do?

It overlaps the end of one track with the start of the next, up to 5 seconds, so the join is smooth instead of abrupt. Set it to 0 for a direct cut.

Are my files uploaded anywhere?

No. Decoding, merging and encoding all happen locally in your browser.

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