MP4 to WAV

Pull the audio out of an MP4 and save it as a 16-bit PCM WAV — the lossless, uncompressed format expected by every audio editor and DAW. The video stream is discarded; this is the right tool when you need clean source audio from a video for editing, transcription, or archival. The conversion runs locally via ffmpeg.wasm, so your file never leaves your device. Performance depends on your CPU: extracting audio is typically faster than re-encoding video, but very long or 4K sources may still be slow. For best results keep inputs under about 500 MB.