Convert MP4 to WAV
Extract the audio from your MP4 video files and save it as WAV, directly in your browser.
How to convert video to audio in 3 steps
Choose a MP4 video file.
Click convert to WAV.
Download your WAV audio.
Format descriptions
MP4 — MP4 is the most widespread and compatible video container. It supports H.264/HEVC and AAC codecs, making it ideal for streaming, the web and mobile devices.
WAV — WAV is a lossless audio format developed by Microsoft and IBM. It delivers faithful quality but very large files, and is often used in production.
Technical comparison: MP4 vs WAV
Technical breakdown of the MP4 and WAV specifications: compression, colour, transparency and animation support.
| Property | MP4 | WAV |
|---|---|---|
| Specification | MP4 (MPEG-4 Part 14) | WAV (Waveform Audio File Format) |
| Media type | Video | Audio |
| Compression | Lossy · H.264 / HEVC + AAC | Uncompressed · Linear PCM |
| Color space / bit depth | YUV 4:2:0, 8-10 bit | 16/24/32-bit float |
| Transparency | Not supported | Not applicable |
| Animation | Yes (animated) | No (static) |
| Best for | MP4 is the most widespread and compatible video container. It supports H.264/HEVC and AAC codecs, making it ideal for streaming, the web and mobile devices. | WAV is a lossless audio format developed by Microsoft and IBM. It delivers faithful quality but very large files, and is often used in production. |
What happens when converting MP4 to WAV?
The MP4 data is decoded inside your browser with WebAssembly and re-encoded to the WAV specification, so no file is ever uploaded to a server. WAV uses lossy compression: the file gets far lighter, but a small amount of fine detail is discarded in the process. MP4 supports animation while WAV does not, so only the first frame is kept. Audio is re-encoded with the WAV codec while keeping the original duration, so audio and video stay in sync.
Frequently Asked Questions
What is video to audio conversion?
Video to audio conversion extracts the sound track from a video file, for example from MP4 to WAV, keeping only the audio content.
Are my video files uploaded?
No. This tool processes video files directly in your browser. Your video files are never sent to a server.
Which video formats are supported?
This tool converts the audio of MP4 video files to WAV, all in your browser.
Is it really free and unlimited?
Yes, the tool is completely free and you can convert as many videos as you want, with no limits.
Does it work on mobile too?
Yes, it works on any modern device, including smartphones, tablets and desktop computers.
Which format will the result be in?
The converted file will always be in WAV format, ready to download and use.
About the video to audio converter
Extract and convert the audio from your MP4 videos to WAV for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
See also:
- Video to Audio Converters
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- Convert MP4 to MP3Extract and convert the audio from your MP4 videos to MP3 for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.
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- Convert MP4 to M4AExtract and convert the audio from your MP4 videos to M4A for free. Everything happens in your browser: your files are never uploaded to a server, and you need no downloads or sign-up to get started.