Convert WAV files to MP3 instantly. Reduce file size up to 90% while maintaining quality. Free online converter with no registration.
Conversion settings — add a file to adjust
Upload your .wav file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .mp3 file when it's ready.
WAV files deliver perfect, uncompressed audio quality—but at a cost. A single 3-minute song in WAV format consumes 30-50MB of storage, roughly 10 times larger than the same song as MP3. Converting WAV to MP3 dramatically reduces file size while maintaining audio quality that satisfies all but the most discerning audiophiles.
Our WAV to MP3 converter uses the industry-standard LAME encoder, trusted by millions of music professionals worldwide. You control the quality-to-size tradeoff with bitrate selection: 320kbps for near-lossless quality, 192kbps for excellent everyday listening, or 128kbps for maximum compression.
Uncompressed audio has its place—professional studios, archival masters, audio editing workflows. But for listening, sharing, and portable use, MP3's efficient compression makes far more sense. You can fit 10 albums as MP3 in the space of 1 album as WAV.
MP3 compatibility is unmatched. Every audio player ever made supports it. Streaming platforms, podcast apps, car stereos, wireless headphones, smart speakers—all handle MP3 flawlessly. WAV support is inconsistent, with some devices and platforms rejecting or mishandling the format.
The quality difference is minimal for most listeners. In blind tests, most people cannot distinguish 320kbps MP3 from uncompressed WAV. Even 192kbps satisfies casual listeners. Only in quiet passages of classical music or in high-end audio systems does the compression become potentially audible.
Our encoder uses LAME 3.100 with joint stereo encoding and optimized psychoacoustic models. VBR (Variable Bit Rate) encoding allocates more bits to complex passages and fewer to silence, maximizing quality within the target file size.
For speech content (podcasts, voice memos), we recommend 128kbps which provides crystal-clear voice quality at minimal file size. For music, 192-256kbps offers excellent quality. For archival or audiophile use, 320kbps CBR provides the highest MP3 quality possible.
MP3 is a lossy format—some audio information is discarded during compression. The algorithm removes frequencies humans can't easily perceive. At 256kbps and above, this loss is inaudible to most listeners. At lower bitrates, artifacts may become noticeable on high-quality playback systems.
| Device | WAV | MP3 |
|---|---|---|
| Windows | Native | Native |
| macOS | Native | Native |
| iOS | Partial | Native |
| Android | Partial | Native |
| Linux | Native | Native |
| ChromeOS | Partial |
| Speed | Near-instant — a 3-minute file converts faster than real time. |
| Output size | Roughly 1/20th of the source (15.5 MB WAV → 0.8 MB MP3 at V2 ~190 kbps). |
| Quality | V2 VBR (~190 kbps) — transparent for almost all listening; the size win is dramatic. |
| Engine | FFmpeg (libmp3lame), server-side. |
Measured on our servers, June 2026, on a 3-minute 16-bit WAV.
Transform bulky WAV files into portable MP3s without sacrificing the quality that matters. Our converter delivers professional-grade encoding in seconds, free of charge. Keep your masters in WAV; enjoy your music in MP3.
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| Native |
| ฟีเจอร์ | WAV | MP3 |
|---|---|---|
| ชื่อเต็ม | Waveform Audio File Format | MPEG Audio Layer III |
| นามสกุล | .wav | .mp3 |
| เหมาะที่สุดสำหรับ | Lossless quality | Universal compatibility |