Audio Converter
Convert between MP3, WAV, OGG, M4A and FLAC entirely in your browser — pick a quality and download. The in-browser engine downloads once (~30 MB) on first use and is cached for the rest of your session.
Quick answer: Convert between MP3, WAV, OGG, M4A and FLAC entirely in your browser — pick a quality and download. The in-browser engine downloads once (~30 MB) on first use and is cached for the rest of your session.
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Frequently asked questions
- How do I convert WAV to MP3 without uploading it?
- Drop your WAV file in, leave the format on MP3, pick a bitrate (192 kbps is a great default), and click Convert. Everything runs in your browser.
- Is my audio uploaded anywhere?
- No. The conversion uses ffmpeg compiled to WebAssembly and runs entirely on your device.
- Which output formats are supported?
- MP3 (LAME), WAV (PCM 16-bit), OGG (Vorbis), M4A (AAC), and FLAC (lossless).
- What bitrate should I pick?
- 128 kbps is fine for podcasts and voice. 192 kbps is the sweet spot for music (the default). 256 kbps gives a noticeable bump on dense mixes. 320 kbps is the maximum MP3 quality — most listeners can't distinguish it from 192 kbps.
- Why are WAV and FLAC missing the bitrate option?
- Both are lossless — they don't have a bitrate dial. WAV is uncompressed; FLAC compresses losslessly (typically 40–60% of the WAV size with identical quality).
- Does FLAC really sound better than MP3 320 kbps?
- Only on high-end equipment with very specific source material. For most listeners and earbuds, FLAC and MP3 320 kbps are indistinguishable. FLAC's main benefit is archiving — re-encoding it later doesn't compound losses.
- What's the maximum file size?
- 200 MB. That's roughly 3 hours of MP3 or 20 minutes of CD-quality WAV.
- Will the original quality be preserved?
- If you pick FLAC or WAV from a lossless source, yes. Going from MP3 → MP3 or MP3 → AAC is a lossy re-encode and discards a small amount of quality each time, so try to keep your original lossless master if you have one.
- Does it preserve ID3 tags?
- ffmpeg copies tags to the output where the format supports them (MP3, M4A, FLAC, OGG). WAV doesn't standardise tags so they're dropped when targeting WAV.
- Is the audio converter free?
- Yes — completely free, no signup, no watermark.