MP4 to WAV Converter
Convert MP4 to WAV in your browser. Free, private, and on your device.
Convert from
Drop your MP4 files here
One file or a whole batch. Everything stays on your device.
Works with MP3, WAV, M4A, AAC, OGG, OPUS, FLAC, WEBM, MP4, MOV and MKV. Other supported files are welcome too.
Convert MP4 to WAV — Without Uploading Anything
Want just the sound from a video? Pull the audio out of your MP4 and save it as WAV. It is useful for music, lectures, podcasts and voice clips. No upload is needed: conversion happens on your device.
Many converters ask you to send a recording to their server before they can do any work. Crikk reads your local file and runs the audio engine on your device. You skip the upload, and the sound stays with you. You can make another copy with different settings whenever you need one.
How to Convert MP4 to WAV
- Step 1
Add your MP4 files
Drop your files on the page or use Choose Files. You can add several recordings at once. A MP4 page accepts other supported formats too; each row shows what was actually detected.
- Step 2
Check the output format
WAV starts selected. Choose another format if your plans change, then open Advanced for bitrate, sample rate or channel settings. Leave the defaults to preserve source settings where possible.
- Step 3
Convert and download
Click Convert. Files finish one at a time so several encoders do not compete for memory. A single result downloads automatically. For a batch, download individual files or save the completed results together as a ZIP.
MP4 vs WAV: What's the Difference?
| Feature | MP4 | WAV |
|---|---|---|
| Full name | MPEG-4 Video | Waveform Audio File Format |
| Type | Video | Lossless |
| Sound quality | Depends on the audio track inside | Perfect, uncompressed sound |
| File size | Video file — audio is a small part of it | Large — about 10 MB per minute |
| Plays on | Plays on almost everything | Plays on almost everything, but files are big |
| Best for | extracting the audio, recorded lectures, video soundtracks | audio editing, music production and DAWs, voiceover delivery |
Will Converting MP4 to WAV Affect Quality?
We read the audio track inside your MP4. If its codec fits the WAV container and you keep the settings, we copy the sound without re-encoding. Otherwise, the audio is decoded and encoded in the new format. The video is left out of your download.
Will My File Get Bigger or Smaller?
Your WAV file usually takes much less space than the MP4 video. It contains sound rather than pictures. The exact size depends on the length of the audio and your output settings.
When to Use WAV
- audio editing. Open your audio in an editor without another lossy conversion.
- music production and DAWs. Bring the file into a digital audio workstation.
- voiceover delivery. Deliver a recording in a widely accepted editing format.
- mastering. Keep a full-size working file for the next stage.
- archiving recordings. Save a recording without discarding more audio detail.
Before choosing WAV, check what the receiving app or player accepts. Plays on almost everything, but files are big. Windows Media Player, Apple Music, QuickTime, VLC, Audacity, and any audio editor are common ways to open this format. Keep the original recording until you have played the result and confirmed that it fits your project.
Why Use Crikk to Convert MP4 to WAV
🔒 Private by design
Local file reading and conversion keep your recording on your device. The tool does not upload sound or file names.
⚡ No upload wait
Conversion starts with a local file. Speed depends on its length, the output codec and your device.
📦 Convert a batch
Add several files and work through them one at a time. Download completed files separately or together in a ZIP.
🎚️ Choose your settings
Keep source settings where possible, or choose a bitrate, sample rate and channel count for your next app.
↔ Change your mind
The output dropdown stays editable after you add files. Pick a different format without leaving the current page.
✓ Free and simple
There is no account to create and no watermark added to your sound. Your original files stay available for later.
About MP4 Files
MP4 is the most common video format. The sound inside is usually AAC. You can pull out just the audio and save it as its own file.
Opens with: VLC and compatible video players
Made by MPEG · Since 2001
About WAV Files
WAV stores audio with no compression at all. You get full, studio-level sound — and very big files. It's the standard format for recording, editing, and music production.
Opens with: Windows Media Player, Apple Music, QuickTime, VLC, Audacity, and any audio editor
Made by Microsoft & IBM · Since 1991
Frequently Asked Questions
Can I convert a MP4 video to WAV?
Yes. Add your MP4 and choose WAV. The converter saves an audio-only file and leaves the original video alone.
What if my video has no sound?
The file row will explain that no audio track was found. A silent video cannot supply an audio recording.
Which audio track will I get?
The first audio track is selected initially. If a file has more than one track, use its track menu to choose a different language or recording.
Will the original video change?
No. This tool reads the local file and creates a separate download. It does not write changes back into your video.
Is this MP4 to WAV converter free?
Yes. It is free to use with no sign-up, watermark or daily conversion limit.
Do you upload my MP4 file?
No. The file is read and processed by your browser on your device. The conversion tool does not send audio or file names to a server.
Does it work without internet?
The tool can cache the current page and its audio engine when service workers are available. Offline availability depends on your browser cache. Open the page online first; browser storage cleanup can remove cached files.
Can I convert several MP4 files?
Yes. Add a batch and convert it one file at a time. Each result has a download button. Multiple finished files can also be saved together in a ZIP.
Is there a file size limit?
There is no server upload limit because your files stay local. Very large files still depend on device memory, and output files are held in your browser. A computer is a better choice for long recordings.
Does it work on phones?
A browser with the required audio features can run the tool. Codec support varies by device. Unavailable output formats are disabled, and an error row explains when the selected file cannot be decoded.
Can I choose something other than WAV?
Yes. The page starts with WAV, but the output dropdown stays editable. Changing it updates this session without navigating to another page.