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Join Audio

Stitch tracks together into one file, in the order you added them.

Stitch tracks together into one file, in the order you added them. Free, with no sign-up, no watermark and no upload: it all runs in your browser.

What Join Audio is for

Turning a set of tracks into one file: chapters of an audiobook, takes of a voice recording, or a set of clips that should play as a single piece.

How to use it

  1. Add your files. Drop them on the page or choose them. They stay on your device.
  2. Set the output format and quality. The defaults suit most files.
  3. Press convert and save the results, individually or as one ZIP.

Questions

Will the joins be audible?

There is no crossfade, so tracks meet exactly where one ends and the next begins. If a file ends mid-note or starts with a click you will hear it; adding a short fade to the parts first is the usual fix.

Does it re-encode?

Not when the files already match in format, sample rate and channel count, in which case it is a copy and nothing is lost. Mixed inputs are resampled to a common rate first, which does re-encode.

Can I join files of different formats?

Yes. Pick the output format you want and anything that can be decoded will be joined into it, though that route always re-encodes.