Convert WAV to FLAC
FLAC keeps every bit of a WAV and stores it in a smaller file. Convert on your own computer, without uploading.
- Never uploaded
- No size limit
- No sign-up
- Free
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Quick answer: To convert WAV to FLAC, drop the WAV file into the tool at the top of this page and press "Convert to FLAC". The FLAC holds exactly the same sound as the WAV in a smaller file. It happens in your browser, so the file is never uploaded. It is free, with no sign-up and no file size limit.
Updated
How it works
- Drop your audio fileWAV, M4A, MP3, OGG and more. It stays on your computer.
- ConvertThe sound is kept exactly as it is.
- Download the FLACOpens in most music players and audio editors.
Nothing is lost
We converted two one-minute WAV files to FLAC and decoded them again: the sound was identical to the original, bit for bit.
How much smaller it gets
| One minute of | WAV | FLAC |
|---|---|---|
| Spoken voice | 10.6 MB | 2.0 MB |
| Loud, busy music-like mix | 10.7 MB | 4.0 MB |
Quiet or simple sound shrinks most; dense music shrinks less. These two are the extremes we tried, not a promise for your file.
FLAC from an MP3 is not better
If your WAV was made from an MP3, a FLAC made from it holds that same MP3 sound. It will be bigger than the MP3 and no better. For small files use WAV to MP3.
Measured, not promised
Measured on 21 Oct 2026 in Chrome on a 2019 Intel MacBook (an older laptop) with one minute of spoken sound and one minute of a music-like mix. Newer computers are faster; real files vary. More results.
Why your audio never leaves your computer
Your audio is converted by your own computer, inside this tab, and never uploaded. That is why there is no length limit and no sign-up. How it works.
Questions
Does every player open FLAC?
Most music players and audio editors do. Some older car stereos and phones do not; MP3 is safer there.
Can I turn FLAC back into WAV?
Yes, without any loss: use the WAV converter, which also takes FLAC.
Can I convert several files at once?
Yes. Choose or drop several files together. They are converted one after another with the same settings, and you can download each one or all of them in one ZIP.
Is my file uploaded?
No. It is converted inside this browser tab and saved straight back to your computer.
Can I use a video file?
Yes. Drop a video and you get its sound.