Some players and devices handle a single channel better than two, so this free stereo to mono converter merges the left and right channels of your audio into one mono channel. The result is a single-channel file that plays the same on both speakers. Your audio never leaves your browser — nothing is uploaded, so your files stay private.

How to Use the Stereo to Mono Converter

Drop a stereo file, merge its channels, and download the mono version.

1Choose your stereo audio file

Drop your audio file into the box above, or click it to pick a file from your device.

2Convert to mono

Click Process audio and wait a moment while the two channels are merged into one in your browser.

3Download the mono audio

Download your mono audio file. That is all — no account, no watermark.

Why Choose Our Stereo to Mono Converter

Built for single-channel audio, privately and free.

One channel from two

Left and right channels are merged into a single mono channel.

Private by design

Your audio never leaves your device or gets uploaded anywhere.

Free to use

Convert as many files as you like, at no cost.

Works everywhere

Any modern browser, on phone or computer.

Stereo to Mono Converter FAQs

Short, direct answers to the questions readers ask most.

Yes, completely free, with no account and no hidden limits.

Stereo uses separate left and right channels, while mono uses one channel that plays the same on both speakers.

No. Merging channels does not improve quality; it only changes the channel layout.

Yes. Open this page on your phone’s browser, pick an audio file, and download the mono version.