Convert WAV files to MP3 instantly in your browser. No uploads, 100% private.
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or click to browse · MP3, WAV, AAC, OGG, FLAC, M4A
128 kbps MP3 is considered "near-CD quality" and is fine for most listening. Only audiophiles need 320 kbps.
For voice recordings and podcasts, 64 kbps mono is perfectly clear and creates much smaller files.
WAV files are uncompressed and can be 10x larger than MP3. Convert to MP3 or AAC for sharing.
All processing happens in your browser. Your audio files are never uploaded to any server.
WAV (Waveform Audio File Format) stores raw, uncompressed audio data. A single minute of CD-quality stereo audio takes approximately 10 MB in WAV format. A typical 4-minute song is 40 MB as a WAV file but only 4 MB as a 128 kbps MP3 — a 10x reduction in file size. Converting WAV to MP3 makes files practical for sharing, streaming, and storing large music collections.
Despite being 10x smaller, a well-encoded MP3 at 192 kbps or higher is virtually indistinguishable from the original WAV to most listeners. The MP3 codec uses psychoacoustic models to identify and remove audio frequencies that human ears cannot perceive, achieving dramatic compression with minimal perceived quality loss.
| Feature | WAV | MP3 |
|---|---|---|
| Compression | None (raw PCM) | Lossy (psychoacoustic) |
| File size (per minute) | ~10 MB | ~1 MB (128 kbps) |
| Quality | Perfect (lossless) | Near-perfect at 192+ kbps |
| Compatibility | Universal | Universal |
| Editing quality | Excellent | Good (avoid re-encoding) |
| Best for | Production, archiving | Sharing, streaming, storage |
Keep your WAV files as master copies whenever possible. If you are producing music, editing audio, or archiving recordings, WAV (or FLAC) preserves every sample of the original recording. You can always convert from WAV to MP3 later, but you cannot recover the data lost during MP3 encoding.
For professional workflows, many producers record in WAV at 24-bit/96 kHz for maximum quality, then export MP3 copies for distribution. The WAV masters serve as the archival version from which any future format can be derived without quality degradation.
Convert to MP3 when you need to share files via email, messaging apps, or cloud storage where bandwidth and storage are limited. MP3 is also the right choice for portable music players, car audio systems, and any scenario where compatibility and file size matter more than absolute audio fidelity.
A 1 GB music collection in WAV format compresses to roughly 100 MB in MP3 at 128 kbps, or 200 MB at 256 kbps. This makes a significant difference when syncing to mobile devices or uploading to streaming platforms.
Our WAV to MP3 converter uses FFmpeg compiled to WebAssembly with the LAME MP3 encoder — the same encoder used by professional audio software. Everything runs directly in your browser: your WAV file is read into memory, encoded to MP3 at your chosen bitrate, and the result is available for preview and download. No server is involved at any point.