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LocalMedia Tools

Merge Audio Files

Combine multiple MP3, WAV, M4A, AAC, or OGG files into one continuous track — processed entirely in your browser.

Runs in your browser — your files are not uploaded

100% local — your audio is never uploaded

Select audio files

Drop your file here

Quick answer

What it does
Combine multiple MP3, WAV, M4A, AAC, or OGG files into one continuous track — processed entirely in your browser.
Your files
Never uploaded — processed on your device
Price
Free, no account
Formats
MP3, WAV, M4A, AAC, OGG → MP3, WAV

Join your audio clips into one track

Stitch together song segments, voice memos, podcast chapters, or sound effects into a single seamless file. This tool concatenates your audio in the order you select and exports a ready-to-play MP3 or WAV. Files are resampled to a common format so different sources play back smoothly one after another. Everything runs locally in your browser — your audio is never uploaded and stays completely private.

Why use this audio joiner

How to merge audio files

  1. Add your audio Drag and drop your files or click to select MP3, WAV, M4A, AAC, or OGG audio from your device.
  2. Set the order Arrange the clips in the sequence you want them to play in the final track.
  3. Choose the output format Pick MP3 for a smaller file or WAV for an uncompressed result.
  4. Merge and download The clips are joined locally in your browser — save the combined track to your device.

Your audio stays private

All merging happens directly in your browser. Your audio files are decoded, joined, and re-encoded on your own device and are never uploaded to any server. We collect only anonymous, aggregated usage statistics (such as how often a merge starts or succeeds) to improve the tool — never your audio, filenames, or any personal data.

Verify it yourself: Open your browser DevTools → Network tab and run the tool: no request ever carries your file. Everything happens on your device.

FAQ

Is my audio uploaded anywhere?
No. The merge runs entirely in your browser, so your audio files never leave your device.
Can I control the order of the clips?
Yes. The files are joined in the order you arrange them, so you decide what plays first and last.
Which audio formats can I merge?
You can combine MP3, WAV, M4A, AAC, and OGG files. The output can be saved as MP3 or WAV.
Can I mix different formats in one merge?
Yes. The files are resampled to a common format, so clips from different sources play back smoothly together.
Is there a limit on how many files I can join?
There is no hard limit because nothing is uploaded. Very long or numerous files depend on your device's available memory.
Will the audio quality change?
Clips are decoded and re-encoded to a single track. Choose WAV for an uncompressed result or MP3 for a smaller, good-quality file.
Is it really free?
Yes. There are no watermarks, sign-ups, or file-size limits beyond what your device can handle.