Convert Stereo Audio to Mono

Mix both channels into one, fixing one-ear recordings and halving file size.

Free to use · No account needed · Files are processed on your device and never uploaded

About the Stereo to Mono

Some recordings only have sound on one side, which is awkward in headphones. Converting to mono mixes both channels so the sound is centred, and halves the size of the file.

How to convert stereo audio to mono

  1. Add audio files.
  2. Choose MP3 or WAV.
  3. Download the mono version.

Features

  • Centred soundBoth ears.
  • Smaller filesHalf the data.
  • BatchMany files.
  • PrivateNo upload.

Frequently asked questions

Is the Stereo to Mono free?

Yes. The Stereo to Mono is completely free with no sign-up, no watermarks, no daily limits and no premium tier.

Are my files uploaded to a server?

No. FileStripe processes your files locally in your web browser using JavaScript. Nothing is uploaded, so the Stereo to Mono is safe for private photos and confidential documents and even works offline once the page has loaded.

Does it work on iPhone and Android?

Yes. The Stereo to Mono works in Safari, Chrome, Firefox, Edge and Samsung Internet on phones, tablets and computers. On a phone you can pick files from your photo library or files app and share the result straight to another app.

Last updated · Processing happens locally in your browser.

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