Convert stereo to mono
Combine both channels into one so it sounds the same from every speaker.
How to use it
- Add your file. Drop it on the box above or tap it to pick it from your device.
- Let it work. Drop the file.
- Download. Press Download. Nothing was uploaded, so nothing is stored anywhere.
What it does
Left and right are mixed into one channel, which also makes files roughly half the size for formats like WAV.
When to use it
Voice recordings where the voice is only on one side, single-speaker setups, phone systems and smaller files.
Private by design
Most online tools upload your file to their servers. This one doesn't: it loads into your browser and does the work on your own phone or computer, so your files never leave it.
Questions
Is this stereo to mono free?
Yes, completely free, with no account, no watermark and no daily limit.
Are my files uploaded?
No. Everything happens inside your browser on your own device. Nothing is sent to us or anyone else.
Does it work on iPhone and Android?
Yes, in Safari, Chrome and other modern browsers.