WAV to FLAC converter

FLAC halves the size of WAV recordings without losing any quality. Your files stay on this device.

Drop WAV files here Files, a whole folder or a ZIP. Nothing leaves your device.

How to convert WAV to FLAC

  1. Add your files. Drop WAV files anywhere on the page, or use Choose files. Folders and ZIP archives work too; every WAV inside is picked up.
  2. Check that FLAC is selected. FLAC is already chosen on this page. Other formats in the same row are one tap away if you change your mind.
  3. Adjust options if you need to. Choose a bitrate for lossy formats; WAV and FLAC need no settings.
  4. Convert and download. Press Convert. Each file shows its progress, then a Download button. With several files, “Download all” gives you a single ZIP.

What happens to your WAV

The audio is decoded and encoded again as FLAC. Where your browser has no built-in encoder for FLAC, a small open-source encoder compiled to WebAssembly is loaded instead.

Both formats are lossless, so the sound is identical; only the file size and compatibility change.

About WAV and FLAC

WAV: WAV stores uncompressed audio. It is the standard for editing and recording, but files are about ten times larger than MP3.

FLAC: FLAC compresses audio without losing any quality, to roughly half the size of WAV. It is popular for music collections.

Questions

Is my WAV file uploaded anywhere?

No. The conversion runs inside this browser tab using code served by this site, and the FLAC is created on your device. You can even disconnect from the internet once the page and its converter have loaded.

Will converting WAV to FLAC change the sound?

Lossless conversions sound identical. Converting to a lossy format such as MP3 discards detail you will rarely notice at 192 kbps or above. No conversion can add back quality that an earlier lossy encode removed.

Can I convert several WAV files at once?

Yes. Drop as many WAV files as you like, a whole folder or a ZIP. They convert one after another, and “Download all” saves every FLAC in one ZIP that keeps your folder structure.

Is there a file size limit?

There is no fixed limit, because nothing is uploaded. The practical limit is your device’s memory: a phone may struggle with very large files that a laptop converts easily.