Audio Joiner

Merge audio files into one track.

Add your MP3, M4A, WAV, OGG or FLAC files, reorder them with the ↑/↓ controls, and join them into a single MP3 or WAV — with an optional crossfade. Everything runs in your browser; nothing is uploaded.

Drop your audio files here
or click to choose files · MP3, M4A, WAV, OGG, FLAC · add 2 or more · stays on your device
0 trackstotal 0:00
Nothing playing
0:00 / 0:00
Crossfade 0.0s
Join as
Merges your tracks in order, locally — nothing is uploaded. Mixed sample rates and mono/stereo are matched automatically.

How to merge audio files into one

  1. Add your tracks. Choose or drag two or more audio files (MP3, M4A, WAV, OGG, FLAC) — they load in your browser and are never uploaded.
  2. Order & crossfade. Reorder the list with the ↑/↓ controls and set an optional crossfade between tracks.
  3. Join & download. Preview the merged result, then save it as a single MP3 or WAV.

Frequently asked questions

Is the audio joiner free?

Yes — completely free, with no sign-up, no watermarks, and no limit on how many tracks you merge.

Are my files uploaded anywhere?

No. Merging happens locally in your browser, so your audio never leaves your device.

Which formats can I join?

MP3, M4A, WAV, OGG and FLAC; mixed sample rates and mono/stereo are matched automatically, and the result is saved as MP3 or WAV.

Does it work on my phone?

Yes — it runs in any modern browser on mobile or desktop, including Chrome, Safari, Firefox and Edge.

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