10 Best Free MP4 to WAV Converters You Can Use Online | Offline [100% Safe]

Ever had a great MP4 video but only needed the audio? Maybe you’re working on a podcast, remixing music, or pulling dialogue from a movie. Whatever the case, converting MP4 to WAV can save time and give you the high-quality audio you need.

The best part? You don’t need expensive software or advanced tech skills, just the right free online tool.

In this guide, we’ll walk through the 10 best free MP4 to WAV converters available online. Each tool is simple to use, reliable, and completely free. Let’s get started.

Top Free MP4 to WAV Converters:

1. Convertio

Convertio is a favorite for good reason. It’s fast, supports tons of file formats, and doesn’t overwhelm you with ads. If you’re looking for an MP4 to WAV converter free of clutter, this one delivers.

The process is simple: upload your MP4, select WAV as your output format, and hit convert. Within seconds, your MP4 to WAV file is ready to download. It works on both desktop and mobile browsers, which is perfect if you're on the go.

Another bonus? You don’t need to sign up unless you’re converting large files. Convertio limits conversions to 100MB for free users, which is more than enough for most needs.

How to convert MP4 to WAV

• Select files from Computer, Google Drive, Dropbox, URL or by dragging them onto the page.
• Let the file convert and you can download your wav file right afterwards.

2. Online Audio Converter

Need a site dedicated to audio? This one does exactly that. Online Audio Converter focuses only on converting audio files, which makes it ideal if you just want to convert MP4 to WAV and not get distracted.

The interface is clean and quick. You can adjust settings like sample rate and bitrate, and even apply fade in or fade out effects. This is especially useful if you want a WAV file prepped for editing right away.

Plus, there’s no need to install anything. Just upload, tweak your settings if you like, and download your new MP4 to WAV file in seconds.

3. Zamzar

Zamzar has been around for a while, and it’s still a reliable go-to for file conversion. Whether it’s documents, videos, or audio, Zamzar can handle it.

It’s particularly good if you’re new to file conversion and want a step-by-step experience. Upload your MP4, select WAV, and provide an email if needed. The site will send you a download link once the file’s converted.

While the free version limits the number of daily conversions, it’s perfect for occasional use. It’s one of the most straightforward ways to convert MP4 to WAV free online.

4. CloudConvert

CloudConvert is for those who want a bit more control. This free MP4 to WAV converter lets you tweak everything from sample rate to volume to codec settings.

How to Change MP4 to WAV On CloudConvert

• Click the “Choose Files” button to select your MP4 files.
• Click the “Convert to WAV” button to start the conversion.
• When the status change to “Done” click the “Download WAV” and that's all.

Despite its advanced options, the interface remains intuitive. You won’t get lost trying to figure things out. Just upload your MP4, choose WAV, adjust any settings if needed, and you’re good to go.

The free tier includes 25 conversions per day, which is generous compared to many others. If you're doing batch conversions, this one’s a great pick.

5. AudioExtract

As the name suggests, AudioExtract is all about pulling audio from video. It's perfect when you want to convert MP4 to WAV without any fluff.

It supports MP4 uploads directly from your computer or a URL. Once the file is uploaded, select WAV, hit convert, and download your audio. That’s it. No signups, no hidden steps.

This tool is especially useful if you’re working with simple audio needs—like pulling a voiceover or background music from a video file.

6. FreeConvert

FreeConvert lives up to its name. It’s a free MP4 to WAV converter that makes things super easy, even for beginners.

You get helpful file size indicators, drag-and-drop support, and fast processing. Plus, it gives you a preview option so you can double-check the file before downloading.

Want to change the sample rate or audio volume? FreeConvert lets you do that without requiring any extra software. If you're wondering how to convert MP4 to WAV without headaches, start here.

7. 123Apps Video Converter

This tool is part of the 123Apps suite, known for its no-nonsense online tools. Their video converter works great for converting MP4 to other formats—including WAV.

It supports direct video trimming, so you can cut out the part of the video you need before converting. This is ideal if you only need a snippet of the audio rather than the entire file.

With no registration and a straightforward design, it’s a great option for people who just want to convert MP4 to WAV free and move on with their day.

8. Kapwing

Kapwing is better known as a video editor, but it also offers audio export tools. If you're editing and want to convert MP4 to WAV, Kapwing lets you trim your video and export only the audio.

It’s particularly useful for creators who want one platform to do it all—edit, adjust, convert, and download. The export options include WAV, making it easy to get a high-quality audio file in a few clicks.

Even with a free account, you can upload and convert files quickly. Just note that free exports may include a watermark, though it typically applies to video only.

9. Media.io

Media.io is an AI-powered tool, by Wondershare, brings a polished interface and fast performance. It supports batch conversion, which means you can upload multiple MP4s and get WAV files for each without repeating steps.

The platform allows up to 100MB for free conversions and lets you customize output settings like bitrate and sample rate. This is especially useful for audio engineers or podcasters who need precise control.

If you’re regularly asking how to convert MP4 to WAV without using up system resources, Media.io is a strong candidate.

10. Audacity

Now, if you’d rather avoid online tools and want a free desktop solution, Audacity is your best friend. It’s not a website, but it’s a gold standard for audio work.

To convert MP4 to WAV Audacity, you’ll first need to import the MP4 into Audacity. Depending on your system, you might need the FFmpeg plugin (which is free and easy to install). Once imported, you can edit the audio, then export it as a WAV file.

This method gives you full editing power, making it ideal for more involved projects like podcast production, sound design, or audio restoration.

Conclusion: Choosing the right tool to convert MP4 to WAV free

There’s no single “best” MP4 to WAV converter—it depends on what you need. If you want a quick, free conversion, tools like Convertio and Online Audio Converter are perfect. If you need more control, CloudConvert or Audacity might be the better route.

Try a few of these and see which one fits your workflow. They're all solid choices, and the best part? You don’t need to spend a dime.

FAQs: You’ve Got Questions, We’ve Got Answers

1. What’s the difference between MP4 and WAV files?

MP4 is a video format that can include audio, video, and subtitles. WAV is an uncompressed audio format, often used for high-quality sound editing.

2. Is it safe to use these online converters?

Yes, most of the tools mentioned here are reputable and don’t store your files longer than necessary. Always double-check a site’s privacy policy to be sure.

3. Can I convert MP4 to WAV on my phone?

Yes! Many of these converters are mobile-friendly, especially Convertio, Media.io, and FreeConvert.

4. Why would I want to convert MP4 to WAV instead of MP3?

WAV files are uncompressed, meaning they retain full audio quality. This is ideal for editing, archiving, or any situation where you want the best sound.

5. Can Audacity really convert MP4 to WAV for free?

Absolutely. You just need to install the FFmpeg plugin to import MP4 files, and you’re good to go.