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Audio Merger

Join several audio files into one track — reorder them however you like.

Tap to choose audio files

MP3, WAV, FLAC, M4A, OGG · merged locally · up to 12 files

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Free Online Audio Merger — Join MP3 & More

Combine multiple audio files into a single track — perfect for stitching together podcast segments, joining chapters of an audiobook, building a continuous DJ mix, or merging voice notes. Add your files, drag them into the right order, choose an output format and download one seamless file. It all happens in your browser, so your audio is never uploaded.

You can even mix formats — drop an MP3, a WAV and an M4A together and the audio joiner will re-encode them into one consistent output. No software, no signup, no watermarks.

How it works

1

Add your files

Drop two or more audio files. They're processed locally, never uploaded.

2

Set the order

Use the up/down arrows to arrange the files exactly how they should play.

3

Merge & download

Pick a format, click merge and download your combined audio file.

Frequently asked questions

Can I merge files in different formats?
Yes. Mix MP3, WAV, FLAC, M4A and OGG freely — they're re-encoded into a single consistent output file.
Are my files uploaded?
No. Merging runs entirely in your browser with WebAssembly, so nothing leaves your device.
How many files can I combine?
Up to 12 files at a time. On phones, fewer and smaller files work best because everything runs in memory.