Audio Converter
Convert between MP3, WAV, AAC, FLAC, OGG and M4A. 100% browser-based via ffmpeg.wasm — nothing is uploaded.
How Audio Converter works
Any common format works. The file never leaves your device.
MP3 (universal), WAV (lossless), FLAC (compressed lossless), AAC/M4A (Apple), OGG (open web).
Re-encoded at 192 kbps for lossy formats, bit-identical for lossless formats.
Frequently asked
Which format should I pick?+
MP3 for maximum compatibility. FLAC or WAV for archival / editing. AAC/M4A for Apple devices. OGG for open-web/podcasts.
Is my audio uploaded?+
Never. Everything runs in your browser via ffmpeg.wasm.
Why does WAV take so much more space?+
WAV is uncompressed — expect 10× the size of the same audio in MP3. Use FLAC for lossless at ~50% of WAV.
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