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Which Audio Format? MP3, WAV, M4A, FLAC

Lossy vs lossless, and practical tips when converting online.

MP3 / AAC / OGG / Opus are lossy and compact; WAV / FLAC are lossless and larger.

Phones and the web often use MP3 or M4A; editing workflows prefer WAV.

Lossy↔lossy re-encoding loses more detail — prefer a lossless or high-bitrate source.

This tool uses FFmpeg (WebAssembly) in the browser — nothing is uploaded.

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