Free tool

Mono or stereo, your call.

Runs entirely in your browser. Drop a clip to downmix stereo into mono or duplicate a mono track into full stereo — ideal for podcasts, voiceovers, and fixing dual-channel exports. Nothing is uploaded.

Try it

Drop an audio file

The fastest way to switch channel layout without installing anything.

Drop an audio file here

MP3, WAV, OGG, M4A — up to 25 MB. We'll switch its channel layout.

How it works

Your audio never leaves your device

The converter decodes the file in your browser, averages channels down to mono or duplicates a mono track across left and right, then re-encodes a 16-bit PCM WAV — all on your machine, no server round trip.

Step 1

Drop the file

MP3, WAV, OGG, M4A or FLAC — up to 25 MB.

Step 2

Pick the layout

Downmix to mono, or expand a mono track to stereo.

Step 3

Download the WAV

Preview first, then save the converted audio.

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Audio Format ConverterConvert between MP3, WAV, OGG, M4A and FLAC — right in your browser.Video to Audio ExtractorPull the audio track out of an MP4, MOV or WEBM as MP3 or WAV.Audio to WAVConvert MP3, OGG, M4A or FLAC to 16-bit PCM WAV.Audio CompressorShrink an audio file's size by re-encoding at a lower bitrate.

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Want the full studio?

Open the AudioPod dashboard for stem separation, voice cloning, transcription, multilingual narration, and batch processing — all on one free account.

Open the dashboard