Extract the audio from an MP4 as an uncompressed WAV file — the lossless choice when you plan to edit, master, or run the sound through other software. Unlike MP3, WAV keeps every sample exactly as it was inside the video, so there is no transcoding loss to carry into your next step.
MP4 to WAV extracts the audio uncompressed, which only makes sense when you intend to edit it. DAWs, transcription engines and mastering tools want raw PCM they can cut without re-decoding, and WAV hands them every sample with no compression artefacts in the way.
Use it before dropping footage audio into Audition, Audacity or a video editor, or when feeding a speech-to-text pipeline that prefers WAV. Expect a heavy file — uncompressed audio runs roughly ten times an MP3 — which is the price of a clean, edit-ready master. For ordinary listening, MP3 is the saner choice; this direction is purely for production.
MP4 (MPEG-4 Part 14) is the most widely supported video container on the planet. It packs H.264 or H.265 video with AAC audio into a single file that plays natively on iPhone, Android, Windows, macOS, web browsers, smart TVs, and every modern editor. Use MP4 when you need a finished, shareable video that will just work, anywhere, without re-encoding.
WAV is uncompressed PCM audio — the same lossless signal a CD or studio session uses. A three-minute WAV is roughly 30 MB versus 7 MB for MP3, but every sample is preserved. Use WAV when you plan to edit, master, sample, or archive the audio and need zero generation loss.
Drop a MP4 file from your device, or paste a public URL pointing to the MP4 you want to convert.
The output is pre-set to WAV.
Click Convert. Our cloud workers fetch the MP4, scan it for malware (video and audio over 1 GB are not scanned), and run the MP4 → WAV pipeline.
A download link appears as soon as the WAV is ready; it works for anyone who has it until the file is deleted. The file is deleted from our storage two hours after it was made (longer for very large files or with a pass), normally within the next 15 minutes.
Browse other popular file conversions handled by the same pipeline.
