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WAVFLAC

Convert WAV to FLAC

This free WAV to FLAC converter changes your Waveform Audio (.wav) file into a Free Lossless Audio Codec (.flac) file, right in your browser. There is nothing to install, no account to create, and no limit on how many files you convert.

100% private. Your file is processed locally in your browser with WebAssembly — it is never uploaded to a server, stored, or seen by anyone.

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The conversion runs on your own device using ffmpeg compiled to WebAssembly (ffmpeg.wasm), so your file is never uploaded to a server. FLAC is best for lossless archiving of music, which is the usual reason to convert from WAV.

Why convert WAV to FLAC?

  • Note: FLAC has narrower support than WAV - convert only when a specific app or workflow needs it.
  • FLAC compresses more efficiently than WAV, so expect a smaller file at the same quality.
  • Pick FLAC when you need a file made for lossless archiving of music.

WAV vs FLAC

PropertyWAVFLAC
Full nameWaveform AudioFree Lossless Audio Codec
ContainerWAVFLAC
Typical codecPCMFLAC
CompatibilityUniversalModern players
LosslessYesYes
Best forUncompressed editing and masteringLossless archiving of music

How to convert WAV to FLAC

  1. Add your WAV file

    Drag and drop your .wav file onto the upload area, or click to browse and pick it from your device.

  2. Start the conversion

    Click "Convert to FLAC". Everything runs locally with ffmpeg compiled to WebAssembly (ffmpeg.wasm) - your file stays on your device.

  3. Wait a few seconds

    A progress bar shows the conversion. The first run is slightly slower while the engine loads, then it is cached.

  4. Download your FLAC file

    When it finishes, download the .flac file straight to your device.

Frequently asked questions

Is this WAV to FLAC converter free?
Yes. It is completely free with no signup, no watermark, and no limit on how many files you convert. It is supported by ads, which keeps the conversion itself free.
Are my files uploaded to a server?
No. The conversion runs locally in your browser using ffmpeg compiled to WebAssembly (ffmpeg.wasm), so your file is processed in memory on your own device and is never uploaded, stored, or seen by anyone.
Will I lose quality converting WAV to FLAC?
FLAC is lossless, but the source is decoded and re-encoded, so the result can only match - not exceed - the quality already in your WAV file.
Will the file get smaller or larger?
Smaller. FLAC (large) compresses more efficiently than WAV (largest) at the same quality.
What is the difference between WAV and FLAC?
WAV is Waveform Audio (a WAV container, typically PCM); FLAC is Free Lossless Audio Codec (a FLAC container, typically FLAC). FLAC is best for lossless archiving of music, while WAV is best for uncompressed editing and mastering.
How long does the conversion take?
Most files finish in a few seconds to under a minute, depending on length and your device. The first conversion is a little slower while the engine downloads and caches, then later runs start instantly.

Related conversions

WAV → MP3WAV → M4A

Need more formats or options? Use the full Audio Converter.