Those Boring Tools
Audio ToolsPrivate by design

Audio Mono/Stereo Converter

Convert an audio file between mono and stereo — processed entirely on your device.

How to use this tool

  1. 1Add an audio file.
  2. 2Pick mono or stereo as the target.
  3. 3Download the converted WAV.

Frequently asked questions

How does stereo-to-mono conversion work here?+

The left and right channels are averaged sample-by-sample into a single channel — the standard, phase-safe way to fold stereo down to mono.

Does mono-to-stereo add real stereo width?+

No — it duplicates the same signal to both channels. It's useful for satisfying a stereo-only pipeline, not for actually widening a mono source.

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