Stereo to Mono Converter
Stereo to Mono Converter online — Downmix stereo audio to a single mono channel. Exports WAV, 100% in your browser.
🔒 Audio is decoded and edited on your device — recordings never leave your browser.
Stereo to Mono Converter: downmix stereo audio to a single mono channel. Audio is decoded and edited on your device and exported as lossless WAV — recordings never upload.
About Stereo to Mono Converter
Stereo to Mono Converter in your browser. Downmix stereo audio to a single mono channel. Your file is decoded with the Web Audio API, edited locally and re-encoded as a 16-bit PCM WAV (lossless and universally supported). Nothing is uploaded, so voice notes and music stay private.
How to use Stereo to Mono Converter
- 1Drop your audio file.
- 2Adjust the controls shown for this tool.
- 3Preview and download the WAV result.
Why use Stereo to Mono Converter?
- ✓Quick audio edits without installing Audacity or a DAW.
- ✓Private — your recording never leaves your device.
- ✓Works with MP3, WAV, M4A/AAC, OGG and FLAC inputs.
Frequently asked questions
How do I stereo to mono converter?+
Drop your audio here, adjust the settings, and download the edited WAV. Everything runs in your browser.
What input formats are supported?+
Any format your browser can decode — typically MP3, WAV, M4A/AAC, OGG and FLAC. The output is always a lossless WAV.
Why is the output WAV and not MP3?+
WAV can be created losslessly in the browser without extra libraries, so quality is perfect. You can convert the WAV to MP3 afterwards if you need a smaller file.
Is my audio uploaded?+
No — decoding and editing happen entirely on your device.
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