5 Free Online MP3 to WAV Converter for You to Select

When you want to upload music files online or send them to friends, which format would you choose?

If you're prioritizing smaller file sizes and faster transfers, MP3 is undoubtedly the choice. But hold on—you might not have noticed that while MP3 seems perfect, it sacrifices significant audio quality compared to formats like WAV.

In other words, if preserving or transferring lossless audio quality is your priority, WAV is clearly the better choice over MP3.

Fortunately, converting between these formats is straightforward. This guide highlights 5 free online MP3 to WAV converters that work on both desktop and web platforms. Whether you prioritize file size or audio fidelity, you're sure to find a solution that meets your needs.

Best Over All: Vidmore Video Converter

You'll notice we've placed Vidmore Video Converter at the very top of this article, even setting it apart from the other options—because Vidmore Video Converter is exceptionally versatile and outstanding, capable of performing the most operations with the most customizable settings.

As a software specializing in audio and video format conversion, Vidmore Video Converter supports nearly all common multimedia formats and features hardware acceleration for blazing-fast conversion speeds. Its operation is simple with clear steps.

Notably, Vidmore Video Converter also offers editing features comparable to professional audio/video editing software, such as trimming file length, enhancing audio quality, and adjusting playback volume. This means you can complete the entire workflow—from uploading audio, enhancing and trimming it, to converting formats and outputting—all in one place.

Want more? Vidmore Video Converter won't disappoint. Its toolbox includes compression and enhancement features for videos, audio, and even images.

New to the software? No worries—we've prepared a step-by-step guide on how to use Vidmore Video Converter.

Step 1. Download and install Vidmore Video Converter on your device.

Step 2. Launch it and enter the Converter interface. Click Add Files to upload your prepared MP3 audio.

Click Convert All to and select Audio > WAV as the output format.

Step 3. Click Convert All to start converting.

Pros

• User-friendly interface with straightforward operation steps.

• All-in-one solution. Not only converts audio formats but also edits and enhances audio.

Cons

• Some features require payment to unlock.

Part 1. Freeconvert

Now let's look at the first tool that can help you convert MP3 to WAV online for free—Freeconvert. Its interface is clean and simple, and as an online tool, it also supports basic audio processing like trimming length, adjusting volume, and adding fade-in/fade-out effects. At the bottom of the page, you can even find some educational content about MP3 and WAV formats.

Pros

• The upload and conversion interface is very clean and easy to understand.

• Supports basic audio trimming and playback effect adjustments.

• Conversion speed is decent.

Cons

• The webpage contains numerous ad pop-ups.

• Maximum file size for conversion is limited to 1GB.

Part 2. Convertio

A prominent upload button and equally noticeable input and output format selection boxes—these two elements form the main interface of Convertio. Scrolling down reveals additional audio settings, including codec, audio channels, and frequency.Similarly, this free online MP3 to WAV converter provides a brief introduction to both MP3 and WAV formats, along with detailed conversion step-by-step instructions.

Pros

• Clean interface with prominent buttons.

• Provides detailed step-by-step instructions.

• Supports uploading audio files for conversion from local devices or cloud storage.

Cons

• Maximum file size limited to 100MB.

Part 3. CloudConvert

CloudConvert is similar to Freeconvert. Both of these free online MP3 to WAV converters allow you to perform basic audio trimming by inputting start and end points before converting MP3 files. However, CloudConvert offers more robust audio editing options. It supports manual adjustment of codec, channels, sample rate, bitrate, volume, and more.

After uploading a file, the system automatically detects the source file format and lets you choose from supported output formats.

Pros

• Clean interface with compactly arranged features.

• Simple basic trimming and audio editing functions.

• Supports over 200 audio and video formats.

Cons

• Occasional slight lag during file uploads.

Part 4. Restream

The tech-savvy page design is our first impression of Restream. This free online MP3 to WAV converter also delivers a pleasant surprise. Like the previous three options, Restream features a clean interface with prominent upload and convert buttons.

Restream retains one of the greatest advantages of online tools—it requires no account registration to start converting immediately. Additionally, Restream imposes no limits on the number of conversions. Whenever needed, you can convert audio files from any device into another popular format.

Pros

• Relatively fast conversion speed.

• Supports converting nearly any audio or video format to MP3 or WAV.

• No conversion limits; no registration or login required.

Cons

• 2GB file size limit.

Part 5. Online Audio Converter

The interface design of Online Audio Converter is quite intriguing, with its sleek buttons always drawing us to use this free online MP3 to WAV converter immediately. The platform supports users uploading audio files for conversion from local sources or cloud storage like Dropbox and Google Drive. A prominent slider allows you to intuitively adjust the output audio quality.

What about audio settings? They haven't been overlooked! Under Advanced Settings and Edit Track Info, you can tweak various audio parameters and assign metadata like artist, year, and title to your output files.

Pros

• Features and buttons are highly centralized.

• Supports adding metadata such as artist, title, year, and genre to files.

• Allows manual adjustment of output audio quality.

Cons

• Contains some ads on the page.

Part 6. FAQs of Free Online MP3 to WAV Converter

How do I convert an MP3 to a WAV file?

You can choose professional format conversion tools like Vidmore Video Converter or online tools such as CloudConvert. Both support converting MP3 to WAV and even allow you to trim the length of the output WAV audio.

Why is WAV better than MP3?

WAV offers significantly superior sound quality compared to MP3. It's an uncompressed format that preserves all original data. MP3 files, however, discard some data to achieve smaller file sizes.
Generally, WAV files are considerably larger than MP3 files. If you encounter size limitations, you may need to compress the WAV file.

What is the highest quality audio format?

Lossless audio formats include WAV, AIFF, FLAC, and others. WAV is generally the preferred format for professional audio editing. To create the most lossless music, choose WAV format and use professional tools like Audacity for WAV editing.

Conclusion

In this article, after comprehensive evaluation, we recommend the most reliable desktop converter along with five additional free online MP3 to WAV converters. Each features a clean interface, fast conversion speeds, and simple audio editing options.