MP4 – MPEG-4 Part 14
MP4 is the most widely supported video container. It usually holds H.264 or H.265 video with AAC audio and plays on nearly every phone, computer, TV and browser.
More MP4 conversionsDrop your MP4 files here
or click to choose MP4 files · up to 95MB each
How to convert MP4 to WAV
- Choose your files. Click Select File or drag your MP4 files into the upload box. You can add many at once.
- Pick the settings. WAV is already selected as the output format. The conversion starts as soon as a file is added.
- Download. Each file appears in the list when it is ready. Download them one by one, or all together with Download all.
Why convert MP4 to WAV?
WAV is uncompressed audio that every audio editor and DJ program opens. Taking the sound from an MP4 as WAV gives you the best starting point for editing, transcribing or using the audio in a project.
When to keep the MP4
Keep the MP4 if you still need the video: the WAV holds only the sound, and the picture cannot be added back.
Tips for the best result
- The audio is saved as 16-bit PCM WAV, the standard CD-quality format.
- WAV files are large, about 10MB per minute of stereo sound.
- For a small file to listen to, use MP4 to MP3 instead.
Common problems and fixes
- The WAV is very large.
- WAV is uncompressed. Use MP4 to MP3 for a much smaller file.
- It says there is no audio track.
- The video has no sound, for example a screen recording made without audio.
WAV – Waveform Audio
WAV stores uncompressed audio at full quality. It is standard for recording and editing, but files are large.
More WAV conversionsConverting MP4 to WAV
- Extracts the audio track.
Related guide
- How to extract audio from a videoSave the sound of a video as MP3, WAV or M4A for free: which format to choose for music, podcasts, editing or transcription, and how to fix common problems.
Frequently asked questions
Does MP4 to WAV improve quality?
No. The sound keeps the quality it had in the MP4; WAV just stores it without further compression.
Can I edit the WAV in Audacity?
Yes. WAV opens in every audio editor.
How do I convert MP4 to WAV?
Click Select File or drop your MP4 file onto the upload box. The converted WAV appears in the list below with a download button. You can add many files at once and download them together as a ZIP.
Is it really free?
Yes. There is no sign-up and no watermark. To keep the service available for everyone there is a 95MB limit per file and a cap on how many files one connection can process in a short period.
Are my files stored?
Your upload is used only to make the converted file. Images are processed in memory; other files are written to a private temporary folder that is deleted as soon as the conversion finishes. Nothing is kept after the result has been sent back.
Will quality drop?
For images, a little, by design: the image is re-encoded at the Quality you choose (default 75%). Audio and video are re-encoded with high-quality settings; documents keep their text and layout as far as the target format allows. Converting never restores detail that is already missing from the original.
How this works: your file is uploaded over HTTPS and converted on this server with open-source engines (libvips for images, FFmpeg for audio and video, LibreOffice and Pandoc for documents, Calibre for ebooks, Ghostscript and Inkscape for PDF and vector files). Images are processed in memory; other files use a private temporary folder that is deleted as soon as the conversion finishes.