Audio Joiner
Last updated: June 1, 2026In-browserMerge multiple audio files into one.
Audio Joiner is a free online tool to merge multiple audio files into one. It runs entirely in your browser, so your files never leave your device — nothing is uploaded. There's no sign-up, no watermark, and it works on any modern browser on desktop or mobile.
How to use Audio Joiner
The Audio Joiner merges several MP3, WAV or M4A files into a single track, in the order you add them, and exports one MP3. It's the simple way to stitch together clips, chapters or songs. It runs privately in your browser with no upload and no watermark.
Read the full guide: How to Merge Audio Files into One (Free)
- 1Add the audio files you want to join, in order.
- 2Reorder them if needed.
- 3Merge and download the combined MP3.
Combine in any order
Add and arrange clips so they play back exactly how you want.
One clean MP3
Export a single, seamless audio file ready to share or upload.
Private and free
Merging runs on your device — no upload and no watermark.
Audio Joiner — frequently asked questions
How do I merge audio files?
Add your clips in order, rearrange if needed, then merge and download the combined MP3.
What formats can I join?
MP3, WAV and M4A files; the output is a single MP3.
Is there a limit on how many files?
There's no fixed limit, but very large combined files depend on your device's memory.
Is it free with no watermark?
Yes, completely free and watermark-free.
Are my files uploaded?
No, the merge happens entirely in your browser.
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