Is this WAV to MP3 converter free?

Yes. It costs nothing, needs no account and has no limit on the number of files.

Are my WAV files uploaded?

No. The conversion runs in your browser, and your recordings and MP3s stay on your device.

Does it work on a phone?

Yes, in Chrome, Edge, Firefox or Safari on a phone or tablet. Very long sessions convert faster on a computer.

Will I lose quality, and can I hear it?

MP3 leaves out detail, so it is never identical to the WAV. At 320 kbps most listeners can’t tell them apart on finished music; at 128 kbps speech still sounds clean. The samples below let you compare.

Should I choose 320 or 192 kbps?

320 kbps for music you release or care about, 192 kbps when size matters more, such as demos and references. For a lossless WAV the converter suggests 320.

How much smaller will the MP3 be?

A CD-quality stereo WAV is about 10.6 MB a minute. At 320 kbps the MP3 is about 2.4 MB a minute, at 192 kbps 1.44 MB and at 128 kbps 0.96 MB.

Can it convert 24-bit, 96 kHz WAV?

Yes. The sample rate is brought to 48 kHz, the highest an MP3 can hold, and the sound is encoded at the full quality of the bitrate you pick.

Does it handle WAV files over 1 GB?

Yes. Files are read in pieces, so size is limited only by your device. A computer handles very large recordings more quickly than a phone.

Is the song title kept?

Not from WAV files: their title and artist fields aren’t carried into the MP3 yet. Name the WAV the way you want the MP3 called, since it keeps the file name.

Is converting WAV to MP3 legal?

Converting recordings you made or have the rights to is fine. Copying other people’s work is governed by copyright law: in the US, the owner holds the right to make copies (17 U.S.C. § 106) and fair use (§ 107) is decided case by case. This converter works only on files on your device and downloads nothing from other sites.

Free WAV to MP3 Converter, Up to 320 kbps

no sign-up, any number of files: Free
suggested for lossless sources: 320 kbps
of a CD-quality WAV, at 320 kbps: About a quarter
60-minute WAV to MP3 on a desktop: 27 s
integer and float WAV read: 8 to 32-bit
your recordings stay with you: In your browser

How do you convert WAV to MP3?

To convert WAV to MP3, open the converter, add your WAV files and choose a bitrate. For a finished mix, pick 320 kbps; for demos 256 or 192; for speech 128. Each choice shows the MP3 size for your file. The converter encodes the audio in your browser and hands you an MP3 to play or download, with nothing to install and nothing sent away.

Convert WAV to MP3 in three steps

Free and without an account, on a computer or a phone.

Add your WAV files
Drop in one recording or a whole session. Each file lists its bit depth, sample rate, channels and length as soon as it is read.
Pick the bitrate by its size
The four bitrates show what your file will weigh at each one. 320 kbps is suggested for lossless sound; mono recordings can stay mono.
Save the MP3
Listen to the result, then download it with the WAV’s name. Spoken recordings can go on to the transcriber in one click.

Made for lossless recordings

The questions WAV owners ask first: how small, how good, and how long it takes.

A musician listening back in a home studio

Know the size before you convert

A minute of CD-quality stereo WAV is about 10.6 MB. At 320 kbps the same minute is about 2.4 MB, at 192 kbps about 1.44 MB. The bitrate list works this out for your file, so you choose by real numbers.

An hour of audio in under a minute

Recordings are read in pieces rather than loaded whole, so a long session is no harder than a short one. On a desktop, an hour of WAV becomes an MP3 in about 27 seconds.

Your recordings stay on your device

Unreleased mixes and private interviews are encoded by your own browser. There is nothing to upload, so a 500 MB session starts converting the moment you add it.

High-resolution and float files handled

24-bit and 32-bit WAV, 32-bit and 64-bit float, 88.2 to 192 kHz: the converter reads them all. Rates MP3 can’t carry are brought to 44.1 or 48 kHz, and a float bounce that peaks above full scale is lowered as a whole instead of clipped.

Starts and ends with your recording

Encoders pad an MP3 with a moment of silence at each end. The converter records exactly how much, so players trim it and the MP3 lines up with the WAV in a timeline or a loop.

From podcast take to transcript

A raw interview becomes a small MP3 for sharing, and the same file goes straight on to the transcriber without another download.

WAV to MP3 samples

One 24-bit WAV at four bitrates, a podcast take and a float bounce, each converted here. Compare the spectrum and the size of every result.

Your audio stays yours

How your recordings are handled, point by point.

Encoded on your device
The WAV is read and the MP3 written by the browser you already use, on a computer or a phone.
Files stay where you keep them
Masters, stems and interviews remain on your device; the converter works without a copy.
No account needed
Convert one take or a whole album without signing up.
Saved under your file’s name
Each MP3 keeps the WAV’s name, so a session folder converts into one you can still find your way around.

WAV to MP3 guide: compress WAV, choose a bitrate

Why WAV files are so large

A WAV stores every sample as it was recorded, with no compression at all. CD-quality stereo, 44.1 kHz at 16 bits, comes to about 10.6 MB for each minute; a 24-bit, 96 kHz session is more than three times that.

MP3 keeps what you can hear and leaves out detail masked by louder sounds. That is why a WAV to MP3 conversion at 320 kbps ends up close to a quarter of the original, and at 128 kbps nearer a tenth.

WAV to MP3 at 320 kbps or less: choose by purpose

The right bitrate depends on what the MP3 is for. The samples below play the same instrumental at all four rates with its spectrum, so you can hear and see where the high frequencies end before you decide.

1Finished songs and masters for listeners: 320 kbps, about 2.4 MB a minute.
2Demos, rough mixes and references: 256 or 192 kbps, about 1.9 or 1.44 MB a minute.
3Podcasts, interviews and lectures: 128 kbps, about 0.96 MB a minute.
4Voice notes in mono: 128 kbps mono sounds the same and keeps the file small.

High-resolution WAV: 24-bit and 96 kHz

MP3 has no bit depth of its own. The encoder works from 16-bit samples, which is still far finer than the detail an MP3 keeps, so a 24-bit or float source loses nothing you would hear to that step. Sample rates are another matter: MP3 tops out at 48 kHz.

Files at 88.2 or 176.4 kHz are brought to 44.1 kHz and files at 96 or 192 kHz to 48 kHz, with a careful resampling filter, not a shortcut. If you need the high-resolution version itself, keep the WAV as your master.

Mono podcasts and multichannel files

Many interview and podcast recorders write mono. The converter keeps a mono WAV mono, and it can fold a stereo file to one channel when both sides carry the same voice. A mono MP3 at 128 kbps is clear for speech and half the size of a stereo one at 256.

Surround and multitrack WAVs, such as 5.1 film stems, are mixed down to stereo with the centre and surround channels set lower and the LFE left out.

Other ways: desktop apps and the command line

The music app on a Mac can create MP3 versions after you set MP3 as its import encoder, and a desktop audio editor can export any open project as MP3. Both work file by file, on a computer.

From a terminal, one line does it: ffmpeg -i in.wav -c:a libmp3lame -b:a 320k out.mp3. Going the other way, to edit an MP3 in a program that wants WAV, use MP3 to WAV.

Troubleshooting WAV files

Most WAVs convert without a second thought. A few cases are worth knowing about before you start.

132-bit float bounces that peak above 0 dBFS: the whole file is lowered to fit, and the result shows by how much.
25.1 or other multichannel WAVs: folded down to stereo automatically.
3Very large files, past a gigabyte: they work, but a computer is faster and has more memory than a phone.
4A file that is not really WAV: the converter reads the contents, not the name, and tells you what it found.

Keep the WAV. An MP3 is ideal for sharing, but edits and future masters should always start from the lossless file.