Browse

There is no upload: The work happens in this tab. Your file never travels, so there is no copy of it anywhere but your own disk.
Nothing to delete later: Sites that upload promise to delete your file afterwards. That promise only matters because the file was theirs to hold.
It works with the Wi-Fi off: The honest test. Turn off your connection and the tools keep working, because everything they need is already here.

Drop your audio hereto join them

Nothing is uploaded - the tools run right here

Applies to every loaded image

Look Strength 100% Brightness Contrast Saturation Vibrance Vignette

Max width

Format Shape

Colours 6 Detail 1 Smooth curves

Shape Size Across Down Border

Text Where

100%

Merge audio without uploading it

Join several tracks into one - here in this tab, with nothing uploaded.

Joining recordings means every one of them has to be in one place. That place should be your own computer.

Do the tracks need the same format?

No. Matching tracks are joined without re-encoding; mixed ones are converted to match first. Pick the format to save the result in.

Can I reorder them?

Yes - use the arrows beside each track before joining.

Is there a gap between them?

No. Each track starts the moment the last one ends.