Bulk WAV to M4A Converter Online — Free HD Quality
Drag and drop your multiple WAV files into this free online WAV to M4A converter (.wav to .m4a), and click the Convert button to bulk convert them to M4A format in HD quality. Use the quality slider to fine-tune your M4A output, then download your converted files one by one or as a single ZIP — your original WAV files are removed from our servers right after.
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PNG, JPG, WebP, GIF, HEIC, RAW, PSD, SVG and more
Max 100MB per file
WAV vs M4A — File Format Comparison
| Feature | WAV | M4A |
|---|---|---|
| File Extension | .wav | .m4a |
| MIME Type | audio/wav | audio/mp4 |
| Compression Type | Lossless | Lossy |
| Metadata Support | Yes | Yes |
What Is WAV Format?
Waveform Audio File Format — Microsoft and IBM's uncompressed PCM audio standard delivering bit-perfect quality for professional recording, mixing, and archival use.
- Compression: Lossless
- Tags & Metadata: Supported
What Is M4A Format?
MPEG-4 Audio — AAC audio in an MP4 container, the standard format for Apple Music, iTunes purchases, and iPhone voice memos, offering better quality than MP3 at equivalent bitrates.
- Compression: Lossy
- Tags & Metadata: Supported
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