MP3 to WAV
Upload a MP3 file and download it as WAV. Free to start.
- Sent over HTTPS · link expires in 24 h
What changes
MP3 and WAV side by side: quality, size and where each one opens.
MP3 vs WAV
| Property | MP3 | WAV |
|---|---|---|
| Quality | Good | Excellent |
| File size | Small | Large |
| Compatibility | Opens everywhere | Widely supported |
| Advantages |
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| Disadvantages |
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WAV keeps more detail than MP3. Convert MP3 files when the app, site or workflow you use needs WAV.
How it works
- Step 1:
Drop the MP3 file on the orange block above, or press “Choose MP3”.
- Step 2:
Press “Convert to WAV”. The block shows the progress while the server converts the file.
- Step 3:
Press “Download” to save the WAV file. On Free the link works for 24 hours.
How MP3 to WAV conversion works
Converting MP3 to WAV decodes the lossy-compressed MP3 audio to an uncompressed PCM waveform stored in the WAV container, making the audio compatible with professional recording software and hardware devices that require uncompressed input. MP3 uses MPEG-1 Audio Layer III psychoacoustic lossy compression; WAV stores raw PCM samples at full bit depth (typically 16-bit or 24-bit) and the original sample rate. The decoding step reconstructs the audio waveform from the MP3 bitstream, but it cannot recover the detail that was discarded during the original MP3 encoding. The WAV output is an accurate uncompressed copy of the decoded MP3, not a restoration of the original recording. The file size increases significantly: a 4-minute MP3 at 128 kbps (~3.7 MB) becomes approximately 40 MB as a 16-bit 44.1 kHz WAV. 1converter uses FFmpeg for decoding, preserving sample rate and channel count from the source file.
Quality levels for MP3 → WAV
| 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 WAV file is good for and why people convert to it.
- Lossless qualityUncompressed audio for best quality
- Professional editingPerfect for audio production
- Professional music production
- Audio editing and mastering
Where your file goes
- It travels to our server over an encrypted HTTPS connection and is converted there.
- The WAV 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.