Convert WAV to MP3
WAV is uncompressed: one minute of stereo takes about 10 MB. Converted to MP3, the same recording shrinks to 1–2.4 MB depending on quality, small enough for email and messaging apps.
Free · no sign-up · your file is processed in your browser and never sent to a server
No file handy? Try it with a 20-second Turkish meeting recording.
How to use
- Choose your WAV fileDrop one or more WAV files. On this page the tool only accepts WAV; for other formats, use the audio converter.
- Pick the qualityChoose the MP3 bitrate: 128 kbps for speech, 192–320 kbps for music.
- Convert and downloadFiles are processed one after another; each finished file comes with its own download link.
WAV and MP3 at a glance
| WAV | MP3 | |
|---|---|---|
| Codec | PCM (uncompressed) | MPEG Layer III |
| Type | Uncompressed | Lossy |
| Approx. size | 44.1 kHz / 16-bit stereo: ~10 MB/min | 128 kbps: ~1 MB/min · 320 kbps: ~2.4 MB/min |
| Typical source | Field recorders, exports from studio and editing software, music ripped from CDs | Music libraries, podcasts, recorder apps, almost every device |
Why convert?
- Staying under the file size limits of email and messaging apps
- Playing on phones and in-car audio systems
- Getting a podcast or lecture recording ready to publish
Common issues with WAV files
- 24- or 32-bit WAV: The tool reads it; MP3 has no bit depth as such, so the result is no different from an MP3 made from a 16-bit source.
- Multichannel WAV (like 5.1): MP3 carries at most two channels; the tool mixes down to stereo.
- Voice recordings: Turn on mono and choose 128 kbps; the file halves in size and intelligibility doesn't change.
Privacy: your file never leaves your device
Everything happens in your browser. Your file is not sent to Voiser's servers or stored anywhere, and it's cleared from memory when you close the tab. That's also why the tool stays fast on a slow connection.
Common questions
How much quality do I lose converting WAV to MP3?
MP3 is lossy, but at 192 kbps and above most listeners can't hear the difference. If you'll edit or master, keep the original WAV and use the MP3 for sharing.
Which bitrate should I choose?
128 kbps is enough for speech. Choose 192 or 256 kbps for music, and 320 kbps for archive-quality MP3.
Can I convert several WAV files at once?
Yes, you can add up to 10 files at a time. They're processed one by one and each gets its own download link.
Is my file sent to a server?
No. Conversion happens in your browser; your WAV file never leaves your device.
Related tools
- Audio converterConvert files between MP3, WAV, M4A, OGG and FLAC.
- Extract audio from videoSave the audio track of your own videos as MP3, M4A or WAV.
- MP3 cutter and audio trimmerSelect any part of an audio file on the waveform and cut it out.
- Audio joinerMerge several audio files into one, in the order you choose.
Turn your converted recording into text.
Transcription turns speech into time-stamped text with separate speakers. Start with a free account.