Does converting WAV to FLAC reduce quality?

No. FLAC is a lossless format. The audio data is preserved exactly. Converting WAV to FLAC and back to WAV produces a file bit-for-bit identical to the original.

How much smaller will my WAV file be as FLAC?

Typically 40-60% smaller depending on the audio content. Music with lots of silence compresses more; complex, full-frequency music compresses less.

Is FLAC widely supported?

FLAC is supported by VLC, Foobar2000, Plex, TIDAL, Qobuz, Windows Media Player, and most Linux music players. Apple devices support FLAC natively since iOS 11.

Are my files uploaded to a server?

No. All conversion runs in your browser using WebAssembly. Your WAV files never leave your device.

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Conversion

WAV to FLAC Converter Online Free

Convert WAV audio files to FLAC format in your browser. FLAC (Free Lossless Audio Codec) compresses WAV files by 40-60% with no quality loss whatsoever. A 100MB WAV file becomes 40-60MB as FLAC with identical audio. Perfect for archiving music collections and studio recordings. Uses FFmpeg.wasm — no upload needed.