Convert WAV to FLAC Online — No Upload, No Watermark
FLAC is lossless like WAV but ~50 percent smaller. Converting WAV to FLAC saves disk space without any quality loss — perfect for archival.
Drop audio file here
Max file size: ~2 GB (memory permitting)
Where WAV files come from
This is the archiving step: recordings, CD rips and masters that need to stay bit-perfect but should not occupy twice the space they need to.
What changes when you convert WAV to FLAC
| Encoding | PCM compressed losslessly to FLAC |
|---|---|
| File size | Roughly half, depending on the material |
| Quality | Bit-perfect, fully reversible |
Worth knowing first
How much you save depends on the audio. Dense, loud music compresses least, perhaps thirty percent; sparse speech with silences can halve or better. There is no quality setting to get wrong, since every FLAC level produces identical audio and only trades encoding time for size.
FAQ
Is any quality lost?
None. FLAC reconstructs the original samples exactly, which is what lossless means. Converting back to WAV gives a bit-identical file.
Why did my file only shrink by a third?
Because lossless compression can only exploit the redundancy that is actually there. Loud, dense mastering leaves little, while quiet passages and speech leave a lot. A third is a normal result for modern music.
Should I archive in FLAC or WAV?
FLAC, in almost every case. Same audio, half the size, and real metadata support. Keep WAV only for tools that cannot read anything else.
Is this WAV to FLAC converter free, with no upload?
Yes. Conversion happens locally in your browser via FFmpeg WebAssembly — your audio never uploads. No signup and no watermark. Length is limited only by the memory your browser gives this tab, which is far smaller on a phone than on a computer.