Stereo Channel Swap
Swap the first/left and second/right channels of exactly two-channel audio and export WAV.
What this tool does
Channel swap changes channel placement only. It does not alter duration, sample rate or sample values other than exchanging the two channels.
How it works
Audio is decoded with the browser Web Audio API. Processing is deterministic and local in the browser. Generated audio exports are 16-bit PCM WAV; marker exports are text sidecars.
Limitations
Browser codec support varies. Files that cannot be decoded are rejected. This utility does not claim mastering, forensic analysis, certified metering, or restoration beyond its stated operation.
Privacy
Processing stays in your browser for this tool. The selected file is not intentionally uploaded by this page.
FAQ
Does it change the original file? No. It creates a new export. Does metadata carry over? WAV processing exports do not preserve source metadata.