Merge Audio Files Online Free — MP3 and WAV Audio Joiner

Stitch multiple audio clips into one file — reorder them, merge MP3, WAV, and OGG into a single seamless WAV download.

Merge Audio Files Online Free — MP3 and WAV Audio Joiner
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Merge Audio Files into One Track

Combine MP3, WAV, and OGG clips in any order and download one seamless audio file. Everything happens in your browser — nothing is uploaded.

100% private

Runs entirely in your browser. Your audio files are never uploaded to any server.

No signup

Use it instantly. No accounts, no email, no waiting.

Free forever

No watermarks, no trial limits, no locked features.

How to use the Audio Joiner

  1. 1Add your audio files

    Tap the drop zone or drag and drop several MP3, WAV, OGG, or M4A files at once. Each file is decoded in the background and its length is shown.

  2. 2Arrange the order

    Use the up and down arrows to set the play order, or the × button to remove a file. The total duration and estimated file size update automatically.

  3. 3Merge and download

    Hit “Merge audio files”, preview the result in the player, then download the single merged WAV file. Use “Merge different files” to start over.

Features

Join any number of clips

Merge as many audio files as your device memory allows — intros, voice notes, music beds, podcast segments.

Reorder with one tap

Up and down arrows move each clip in the sequence; remove any file instantly with the × button.

MP3, WAV, OGG, M4A input

Mix different formats freely — everything is decoded to the same quality before joining.

Live duration and size estimate

See the total running time and estimated output size before you merge, so there are no surprises.

Lossless WAV output

The merged track downloads as a 16-bit PCM WAV that plays on every phone, computer, and car stereo.

Preview before downloading

Listen to the merged result right on the page to confirm the order and joins sound right.

Frequently asked questions

Is the audio joiner free?
Yes. It is completely free with no signup and no limits on the number of merges.
Which audio formats can I merge?
Anything your browser can decode: MP3, WAV, OGG, and M4A all work. You can freely mix formats in one merge.
Why does the merged file download as WAV?
WAV is a lossless, universal format that plays everywhere with no compatibility issues. Your joined audio keeps full quality.
Will merging reduce the audio quality?
No. Each file is decoded losslessly and the joined track is saved as uncompressed 16-bit WAV, so no extra compression is applied. (Existing MP3 compression artifacts in the source files stay exactly as they were.)
How do I change the order of the clips?
Use the up (↑) and down (↓) arrows on each row. The numbers on the left always show the current play order, and the total duration updates automatically.
Is there a file size limit?
There is no fixed limit — everything runs in your browser, so very large files are limited only by your device’s memory. Files are decoded one at a time to keep memory use low.
Are my audio files uploaded anywhere?
No. Decoding and joining happen entirely in your browser. Your files never leave your device.
Can I merge just one file?
You need at least two files to merge. Add two or more clips, arrange them, and hit the merge button.

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