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.
- 01
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.
- 02
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.
- 03
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
No. Compression is not reversible — what the MP3 encoder discarded is gone for good, and the WAV is a lossless copy of what remains. It sounds identical to the MP3 and takes about ten times the space. The reason to do it is to stop losing further quality through editing, not to recover anything.
320kbps if the file matters and size does not. 192 is the practical sweet spot and is where most people stop hearing a difference on ordinary equipment. 128 is noticeably softer on cymbals and reverb tails, and is worth it only when size is a hard constraint.
Because it stores every sample. Stereo 44.1kHz WAV is about 10MB per minute regardless of what the music is; an MP3 of the same minute is one to two and a half. That is the whole trade, and it is why both formats still exist.
No daily limit, because there is no server counting. The size ceiling is about 100MB and comes from your device’s memory — the file is decoded in full while it is converted.
As inputs, yes — anything your browser can decode goes in, video files included. The outputs are WAV and MP3, which between them cover almost every reason people convert.
Usually not. Keep the original unless something downstream demands otherwise — video tools generally want 48kHz, and speech-only material can drop to 22.05kHz for a real size saving. Converting up from a lower rate adds nothing.
No, and for a format conversion there was never a reason for it to be. The decoding and re-encoding both happen inside this page.
Yes. No account, no credits, no watermark and no cap on the number of files.
The page has to load first, but the conversion itself needs no network. Once it is open, a dropped connection makes no difference.
The general audio converter page covers the same ground with the input side written up more fully, including pulling audio out of video files. For exotic targets you will need a desktop tool — the browser can decode far more formats than it can write.
Convert it
MP3 to WAV or WAV to MP3, with the settings you choose. Nothing uploaded.