SpeakwiseFree MP3 to WAV Converter: Get a Real WAV File
This free MP3 to WAV converter turns a compressed MP3 into a standard WAV file, right in your browser. Choose an MP3 and the tool builds a new WAV with the same sound. Nothing uploads. The whole conversion happens on your device.
Free. No sign-up. Your file stays on your device while it converts.
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Need to go the other way? Try WAV to MP3, or get a transcript with MP3 to text.
How to convert MP3 to WAV
1. Choose your MP3 file
Pick an MP3 file up to 60 minutes long.
2. The tool builds your WAV
It keeps the same sample rate and channels as your MP3.
3. Download your WAV
Your WAV file is ready to download in seconds.
Why convert MP3 to WAV
Some editing software, some apps and some upload forms only accept WAV files, not MP3.
This tool builds a real WAV file from your MP3 in seconds, so you can use it wherever WAV is required.
Being honest about sound quality
A WAV file cannot bring back detail that MP3 compression already removed. Making a WAV does not undo that.
What you get is a standard WAV file at your MP3's own sound quality. That is often exactly what a form or a program is asking for.
What this conversion keeps
The new file is a 16-bit WAV with the same sample rate as your MP3. A mono MP3 stays mono, and a stereo MP3 stays stereo.
This tool also accepts M4A, AAC, AIFF and FLAC files. It also reads the sound inside a MOV or MP4 video. Any of these becomes a WAV.
Good to know before you start
This tool handles one file at a time, up to 60 minutes long. WAV files are big, about 10 MB for every minute of stereo sound, so the limit is shorter here than on the other converters.
On a phone, the limit can be lower, because a WAV file takes up a lot of memory while it is being made. The tool checks your file first and tells you before it starts.
It works in modern browsers on iPhone, iPad, Android phones, and Mac or Windows computers, including Chrome, Safari and Edge.
Who this is for
Video and audio editors often need WAV because their software asks for it. So do people uploading to a service that will not take MP3. Anyone who just needs a plain, standard audio file for a project can use this too. If you want to go the other way later, try WAV to MP3.
Used by recruiters, executives, consultants, and more.
Frequently asked questions
Is this MP3 to WAV converter free?
Yes. It is free, with no sign-up, no email and no watermark.
Does converting MP3 to WAV bring back lost quality?
No. A WAV file cannot bring back detail the MP3 already removed. It gives you a standard WAV file at the MP3's own sound quality.
What kind of WAV file do I get?
A 16-bit WAV with the same sample rate and the same number of channels as your MP3. A mono MP3 stays mono, and a stereo MP3 stays stereo.
Why would I need a WAV file instead of an MP3?
Some editing software, apps and upload forms only accept WAV. This tool gives you a real WAV file in seconds.
What other files can I convert to WAV here?
You can also start from M4A, AAC, AIFF, FLAC, or the sound inside a MOV or MP4 video, plus most other audio your browser can play.
How long can my MP3 be?
Up to 60 minutes on a computer. WAV files take up a lot of memory, so the limit can be lower on a phone. The tool checks your file first and tells you before it starts.
Can I convert more than one MP3 at a time?
No. One file at a time keeps the tool fast and simple.
What devices and browsers work with this tool?
Modern browsers on iPhone, iPad, Android phones, Mac and Windows computers all work, including Chrome, Safari and Edge.
How long does it take to get my WAV file?
Most MP3 files convert in a few seconds. A long recording can take a minute or more, a bit longer on a phone.