WAV to FLAC converter

Free, unlimited, no account. Uncompressed PCM. Lossless, large, editable everywhere. → Lossless compression, about half the size of WAV.

🔒 Nothing is uploaded. Check the Network tab of your browser: it stays empty.

Converting WAV to FLAC gives you the same content in a different container. It runs in your browser: nothing is uploaded, there is no queue and no size limit.

What changes when you convert WAV to FLAC

  • Both formats are lossless: nothing in the picture or sound changes, only the container and the compression.

When to convert, and when not to

Convert to FLAC for archiving music losslessly. Lossless compression, about half the size of WAV.

Keep WAV for recording and editing. Uncompressed PCM. Lossless, large, editable everywhere.

How to convert WAV to FLAC

  1. Drop your WAV file on the converter above, or click to choose. Several at once is fine.
  2. Check the options if you need them: there are none for this pair, it just works.
  3. Click Convert, then Download. Nothing was sent anywhere, your browser did the work.

Questions

Is my WAV file uploaded?

No. The conversion runs in your browser with WebAssembly. There is no upload endpoint on this site. You can open your browser's Network tab, or go offline after the page loads, and it still works.

Is there a file size limit?

No fixed one. The limit is your device's memory: a large audio file on a phone is slower than on a laptop, but nothing is rejected for being big.

Is it free?

Yes, without an account, without a daily cap and without a watermark. Your device does the computing, so there is no server bill to pass on.

Will the quality drop?

No. FLAC is lossless: the audio content is stored exactly.

Can I convert several files at once?

Yes. Drop them all; each is converted in turn and you can download them one by one or as a single ZIP.

Which engine does the conversion?

Media engine (FFmpeg, multithreaded WebAssembly), compiled to WebAssembly and running in your browser, on all your CPU cores when the browser allows it. First use downloads about 31 MB, cached afterwards.