# How to Convert MP3 to WAV (Konvertera MP3 till WAV) in Your Browser

Canonical: https://filevale.com/guides/konvertera-mp3-till-wav/
Updated: 2026-10-31

> Convert MP3 to WAV for audio editors, DJ software or CD burning, right in your browser. What WAV changes, what it can't fix, and the Mac option.

To convert MP3 to WAV (konvertera MP3 till WAV), open Filevale's MP3 to WAV Converter, drop in your MP3 and click **Convert**; the WAV file is made on your own device. It works in any modern browser on Windows, Mac, iPhone, Android or a Chromebook, with nothing to install. Below are the steps, what the conversion can and can't do for sound quality, and a built-in option for Mac users.

## Why convert MP3 to WAV?

MP3 is the most compatible audio format, but it is lossy. WAV is uncompressed audio: full quality, but about 10 MB per minute of stereo sound. People usually need WAV because an audio editor, DJ software, a sampler or a CD burning program asks for it, or because a school or work submission requires a WAV file.

![MP3 to WAV in the Filevale iPhone app: a voice memo converted to uncompressed WAV.](https://filevale.com/assets/app/mp3-to-wav.webp)

## Convert MP3 to WAV in your browser

[Open MP3 to WAV Converter](https://filevale.com/mp3-to-wav/)

1. Open [MP3 to WAV Converter](/mp3-to-wav/) and drop your MP3 on the page, or click to browse. You can add several files at once.
2. Adjust the quality if you like, then click **Convert**. Everything happens on your device.
3. Download the WAV file. If you converted a batch, you can download them all together as one ZIP.

The tool runs on a WebAssembly build of FFmpeg inside your browser, so your recordings are not uploaded. The first time, the converter engine (about 30 MB) is downloaded once and then cached. After that, a short clip usually takes seconds, depending on your device. Converting is free with no watermarks, with no sign-up.

Besides WAV, the same page can also output M4A and OGG, in case the app you are feeding turns out to prefer one of those.

## Other formats from the same MP3

[Open Audio Converter](https://filevale.com/audio-converter/)

If you aren't sure WAV is the right target, [Audio Converter](/audio-converter/) takes MP3 and many other formats and outputs MP3, M4A, WAV, FLAC, AIFF, CAF or OGG. AIFF is Apple's uncompressed equivalent of WAV, used by GarageBand and Logic, so pick it if you work mainly on a Mac. If you want a lossless file that takes less space, [Audio to FLAC Converter](/audio-to-flac/) saves FLAC at about half the size of WAV.

## Convert MP3 to WAV on a Mac with the Music app

macOS can do this without a browser. In the **Music** app, open *Settings → Files → Import Settings* and choose **WAV Encoder**. Then select the song in your library and choose *File → Convert → Create WAV Version*. This works well for songs already in your library; for loose files on your desktop or a folder of recordings, the browser converter is usually quicker. Remember to switch the import setting back afterwards if you normally import as AAC.

## What converting to WAV can't do

Converting an MP3 to WAV does not bring back detail that MP3 compression already removed. The WAV keeps exactly what the MP3 contained, only in an uncompressed file that is much bigger. If you need true full quality, go back to the original recording or a lossless source.

Going the other way is common too. If a WAV file is too large to send, [WAV to MP3 Converter](/wav-to-mp3/) makes it about 10x smaller with good quality, and [Compress Audio](/compress-audio/) shrinks audio further for email and messaging. For more ways to cut file size, see [how to shrink file size](/guides/shrink-file-size/), or browse all [video and audio tools](/video-audio-tools/).

## Frequently asked questions

### Does converting MP3 to WAV improve the sound quality?

No. The WAV holds the same audio as the MP3, including the losses from MP3 compression, just stored uncompressed. It sounds the same and takes up much more space, which is fine when an editor or a CD program needs WAV.

### How big will my WAV file be?

WAV is about 10 MB per minute of stereo sound, so a four-minute song becomes roughly 40 MB. MP3 at 128–192 kbps is far smaller, which is why WAV is better for editing than for sending.

### Can I convert MP3 to WAV on my iPhone or Android phone?

Yes. MP3 to WAV Converter works in Safari, Chrome, Edge or Firefox on iPhone, iPad and Android. Pick the MP3 from your files, click **Convert**, and save the WAV back to your phone; the conversion happens on the phone itself.