Is it free? Do I need an account?

Free, no account, no usage limits, and no watermark on the export.

Are my recordings uploaded to your server?

No. Merging happens in your browser; the files never leave your device.

There is no set cap — only your device’s memory. Lots of long files may be slow on a phone with little memory.

Yes. Turn on crossfade (1 second by default) so one part fades out while the next fades in.

Yes. Mix MP3, WAV, M4A and others; the result is exported as a single MP3 or WAV.

Select several audio files at once; they are joined in order, and you can drag them to change the order.

1
Select several audio files and drag them onto the page, or click "Choose files"
2
Drag to reorder, and turn on crossfade if you want smooth transitions
3
Download the merged MP3 or WAV

Is it free? Do I need an account?: Free, no account, no usage limits, and no watermark on the export.
Are my recordings uploaded to your server?: No. Merging happens in your browser; the files never leave your device.
How many files can I merge?: There is no set cap — only your device’s memory. Lots of long files may be slow on a phone with little memory.
Can I add a transition between parts?: Yes. Turn on crossfade (1 second by default) so one part fades out while the next fades in.
Can I merge files in different formats?: Yes. Mix MP3, WAV, M4A and others; the result is exported as a single MP3 or WAV.

Not here? For text-to-speech and AI voices use TutuSound; to edit video or pull audio from video use TutuCut. All audio tools