MP3 to WAV Converter
Both directions, in one place: MP3 to WAV when you need something to edit, WAV to MP3 when you need something to send. Converted in your browser, never uploaded.
What it does
The same audio, in the format the next tool wants
The two formats exist for opposite reasons. WAV stores every sample exactly as it was recorded, which is what an editor, a DAW or a sampler wants to work from. MP3 throws away what most listeners cannot hear and ends up roughly a tenth the size, which is what you want when a file has to travel — email, messaging, a phone, a website.
Converting between them is a two-line operation, and yet the usual route is to upload a file to a service, wait in a queue, download it back, and hit a daily limit if you have more than a couple. There is no technical reason for any of that. Your browser already contains a full audio decoder; this page simply uses it.
One thing worth being straight about: going MP3 to WAV does not restore quality. The detail an MP3 discarded is gone, and the WAV you get is a faithful copy of the MP3 as it sounds, at ten times the size. It is the right move when you need a lossless working file that will not degrade further through editing — not a way to undo compression.
How it works
How to convert MP3 to WAV, or WAV to MP3
One file in, one file out, no waiting.
- 1
Open the file
MP3, WAV, FLAC, M4A, AAC, OGG, or a video file. It is decoded on your device — there is no upload step at all.
- 2
Choose the output
WAV for lossless, or MP3 at 128 to 320kbps. Optionally change the sample rate, or fold stereo to mono to halve the size.
- 3
Download it
Listen back first if you want. The download is a normal file — nothing is watermarked or truncated.
What you get
What an MP3 to WAV converter should let you set
Both directions on one page
Convert MP3 to WAV, or WAV to MP3, without hunting for a second tool. FLAC, M4A, AAC, OGG and video files come in on the same input.
- for editing and DAWs
- no further loss
- about 10× the size
- for sending and phones
- choose the bitrate
- about a tenth the size
A bitrate you choose, not one that was chosen for you
320kbps when the file is going somewhere that matters, 128 when size is the constraint. The difference in file size is roughly two and a half to one.
Sample rate and channels, when they matter
48kHz for video work, 44.1 for music, 22.05 for speech. Folding to mono halves the size again and is often the right call for a voice recording.
No upload, no queue, no daily cap
The conversion happens in this tab. That means it works on a slow connection, works on files you would not hand to a stranger, and works as many times in a row as you like.
- upload, queue, download
- daily limits
- your file on their disk
- convert, download
- no limit
- never leaves the tab
Who uses it
When the format is the problem
Getting audio into a DAW
Some editors and samplers refuse MP3 outright, or handle it badly. WAV always works.
Making a file small enough to send
A ten-minute WAV will not go through email. The same audio at 192kbps will.
Preparing audio for video
Video timelines expect 48kHz. Converting first avoids the resampling the editor would do silently.
Uploading to a service that only takes one format
Distributors, print-on-demand, telephony systems and games engines all have their own requirements.
Getting a WAV out of an MP3-only source
When the next tool in the chain needs lossless input, even if what you have started life compressed.
Shrinking a folder of recordings
Voice memos at mono 22kHz MP3 take a fraction of the space and sound no different for speech.
FAQ
MP3 and WAV conversion questions
Convert it
MP3 to WAV or WAV to MP3, with the settings you choose. Nothing uploaded.