WAV to MP3
Upload a WAV file and download it as MP3. Free to start.
- Sent over HTTPS · link expires in 24 h
What changes
WAV and MP3 side by side: quality, size and where each one opens.
WAV vs MP3
| Property | WAV | MP3 |
|---|---|---|
| Quality | Excellent | Good |
| File size | Large | Small |
| Compatibility | Widely supported | Opens everywhere |
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| Disadvantages |
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MP3 files are usually smaller than WAV files. MP3 opens on every major platform. Convert WAV files when the app, site or workflow you use needs MP3.
How it works
- Step 1:
Drop the WAV file on the orange block above, or press “Choose WAV”.
- Step 2:
Press “Convert to MP3”. The block shows the progress while the server converts the file.
- Step 3:
Press “Download” to save the MP3 file. On Free the link works for 24 hours.
How WAV to MP3 conversion works
Converting WAV to MP3 applies MPEG-1 Audio Layer III lossy compression to uncompressed PCM audio, reducing file size by 60-90% while retaining perceptual audio quality suitable for streaming and distribution. WAV stores raw PCM samples at full bit depth, resulting in large files (around 10 MB per minute at CD quality); MP3 removes audio frequencies that the human auditory system is least sensitive to, based on psychoacoustic modelling. The output bitrate controls the quality-size trade-off: 128 kbps is standard for voice content, 192 kbps suits general music distribution, and 320 kbps is the maximum MP3 bitrate offering near-transparent quality for critical listening. ID3v2 metadata tags (title, artist, album, track number) from the WAV file are written to the MP3 output where present. 1converter encodes WAV to MP3 using the LAME encoder via FFmpeg, which is the reference implementation for high-quality MP3 encoding.
Quality levels for WAV → MP3
| Level | File size | Speed |
|---|---|---|
| Low qualitySmallest file, basic quality | Very small | Very fast |
| Medium qualityRecommendedBalanced size and quality | Medium | Fast |
| High qualityLarger file, great quality | Large | Moderate |
| Maximum qualityLargest file, best possible quality | Very large | Slow |
Audio Tip: For music, High quality (320kbps) is recommended. Medium quality works well for podcasts and voice recordings.
When to convert
What the MP3 file is good for and why people convert to it.
- Much smaller filesMP3 drops sounds most listeners do not hear
- Universal compatibilityPlay on any device
- Sharing music files
- Uploading to music platforms
Where your file goes
- It travels to our server over an encrypted HTTPS connection and is converted there.
- The MP3 file comes back as a private link. It stops working after 24 hours on Free and 7 days on paid plans, and then the files are deleted.