MP3 to WAV

Convert MP3 to uncompressed WAV for editors, DAWs, and further processing — fully in your browser.

Drop an MP3 file here

or click to choose from your computer

MP3 · MPEG audio · common downloads and exports

✓ Local processing in your browser · Files are not uploaded to our servers

About MP3 to WAV conversion

MP3 is a compressed audio format used almost everywhere — downloads, phones, cars, and messaging apps. WAV is an uncompressed (or lightly packaged) PCM format that audio editors, DAWs, and many production tools prefer when quality and precise edits matter more than file size.

This page converts MP3 to WAV entirely in your browser. You add an MP3, run Convert to WAV, then download or save the result to Your Library. Everyday files are meant to stay on your device for this step rather than being uploaded to a remote server.

Use MP3 to WAV when you need a track ready for Audacity, Ableton, Premiere, or another editor; when a plugin or host rejects MP3; or when you want a lossless intermediate before further processing on Sound Booster (EQ, trim, boost) and a later re-export.

WAV files are larger than MP3 at the same length. That is expected: you trade size for an editable, full-detail waveform. Very long tracks need enough memory in the browser; if conversion fails, try a shorter clip first.

How to convert MP3 to WAV

Converting MP3 to WAV on Sound Booster is a short, local process: you add the MP3, decode it in the browser, and download an uncompressed WAV without installing desktop software. Keep this tab open until progress reaches 100% so encoding can finish.

The page is fixed to WAV output, so you do not need to pick a format from a long list. Most everyday MP3 files convert quickly; the first run in a session may take a moment while the audio engine prepares.

Add your MP3

Drop an MP3 file on the panel, choose it from disk, or open it from Your Library. Common stereo and mono MP3 files are accepted when the browser can decode them.

Convert to WAV

Click Convert to WAV. The compressed MP3 is decoded and written as 16-bit PCM WAV. Progress shows as a percentage while processing runs in your browser.

Download or save

Save the WAV to your device, or store it in Your Library so you can open Volume Booster, Equalizer, Trimmer, or other tools without re-uploading the file.

MP3 and WAV formats

What is an MP3 file?

MP3 is a lossy compressed audio format used almost everywhere — downloads, phones, cars, and messaging apps. It keeps size small for everyday listening. Detail removed during MP3 encoding cannot be fully restored by converting to WAV, but WAV is still the better container for editing and many production workflows.

What is a WAV file?

WAV is a common uncompressed audio container, usually holding PCM samples. Editors and DAWs open it reliably, and round-trip processing does not add another lossy encode the way repeated MP3 saves can. The trade-off is a much larger file than the same length in MP3.

What people use it for

Editing in a DAW

Bring an MP3 into Audacity, Reaper, Ableton, or Logic as WAV so cuts, fades, and effects sit on a clean PCM timeline.

Video and podcast post

Many NLEs and podcast tools prefer WAV on the timeline. Convert once, then drop the file into the project.

Further processing here

Save WAV to Your Library and open Equalizer, Bass Booster, or Trimmer without re-uploading the source MP3.

Archive before heavy edits

Keep a WAV working copy so repeated saves do not stack lossy MP3 compression artifacts.

Frequently asked questions

Does MP3 to WAV restore lost quality?

No. Conversion expands the file to PCM, but detail already removed by MP3 encoding cannot be recovered. WAV is still better for editing and further processing.

Do my files leave this device?

No. Decoding and WAV encoding are designed to run locally in the browser for this tool.

Is it free?

Yes on this page, without a mandatory account.

Why is the WAV so large?

Uncompressed PCM needs more disk space than MP3. That is normal and expected for editor-friendly files.

Why did conversion fail?

Try Chrome or Edge, a shorter file, and keep the tab open until progress reaches 100%.