Merge audio files into one online
Merge audio files into one online for free, right in your browser. No uploads and no sign-up — your files never leave your device.
Drop files here or choose them
You can also paste files with Ctrl+V
Files never leave your device
Join MP3, WAV, M4A, OGG, FLAC or Opus files into one track: drag them into order and add a smooth crossfade between them if you like. The result is saved in the format of the first file. All in your browser — the files are not uploaded.
How it works
- Add two or more audio files and drag them into the order you need.
- Choose a transition: a straight cut or a crossfade of 0.5–2 seconds, and the quality if needed.
- Click Merge and download one file.
Frequently asked questions
Can I join files of different formats?
Yes: for example, MP3 and WAV. The result takes the format of the first file in the list — move the file you need to the top.
What does the crossfade do?
The end of one track fades out while the next fades in, so there is no abrupt cut. The total length becomes shorter by the length of the transitions.
Is it free?
Yes. All tools are free, with no sign-up and no watermarks.
Are my files uploaded to a server?
No. Everything runs in your browser, so your files never leave your device.