Which formats can I combine?

Any audio your browser can decode — the files are re-encoded to a single MP3.

Can I reorder tracks?

Yes, use the up/down controls before merging.

Join multiple audio files into one track.

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Combine several audio files end-to-end into a single MP3. Reorder them before merging. Everything is processed on your device.

Open the Merge Audio tool and add your file — it's processed in your browser, never uploaded.
Adjust the available options to get the result you want.
Download the result. There's no sign-up, no watermark, and no size cap.

Which formats can I combine?: Any audio your browser can decode — the files are re-encoded to a single MP3.
Can I reorder tracks?: Yes, use the up/down controls before merging.

Other private, in-browser tools you might need.

Cut a section out of an audio file — quick and lossless.

Speed up or slow down audio without changing pitch too much.

Make an audio file louder or quieter.

Play an audio file backwards.