Audio Merger
Combine multiple audio files into one — right in your browser. Drag to reorder, then merge.
How it works
Upload your audio files
Drop two or more audio files at once. You can add more files afterwards using the 'Add more files' button.
Reorder files
Drag each file up or down to set the playback order. The files will be joined in the order shown.
Merge and download
Click Merge — all files are joined into one seamless MP3 in your browser. Download the result instantly.
Frequently asked questions
How many files can I merge?
There is no hard limit. You can merge as many files as your browser's memory allows. Practically, 10–20 files work smoothly.
Can I merge files of different formats?
Yes. The merger accepts MP3, WAV, FLAC, M4A, AAC, OGG, and OPUS — all mixed together. The output is always MP3.
Can I change the order of the files?
Yes. Drag each file row up or down to reorder before merging.
What format is the merged file?
The output is a 192 kbps MP3, which offers a good balance of quality and file size.
Is my audio uploaded to a server?
No. Merging happens entirely in your browser with FFmpeg.wasm. Your files stay on your device.