Private multi-track merging
Free Online Audio Joiner
Arrange and merge multiple audio files, add a crossfade between tracks, and export one WAV without uploading your files.
Files are decoded and joined on your device.
How to join audio files
Build one continuous track in your browser.
Add your files
Select two or more browser-supported audio files.
Arrange the order
Move tracks up or down and choose the crossfade duration.
Join and download
Render the timeline locally and export one WAV file.
Merge audio without desktop software
Combine songs, voice clips and recordings through a focused local workflow.
Multiple files
Add several audio files to the same timeline.
Flexible ordering
Rearrange tracks before creating the final output.
Adjustable crossfade
Overlap neighboring tracks for a smoother transition.
Consistent local rendering
Mix decoded samples into one stereo result on your device.
One WAV download
Export the complete joined sequence as an uncompressed file.
No remote processing
Source tracks and the rendered result never need a server upload.
Audio joiner FAQ
Answers about ordering, crossfades and output.
Need to trim a track first?
Select the exact section with Audio Cutter before adding it to your sequence.