WAV to FLAC
Convert WAV audio to lossless FLAC - right in your browser, nothing uploaded.
Drag & drop your WAV files here, or click to choose. Everything runs in your browser — nothing is uploaded.
WAV is uncompressed PCM audio: perfect quality, but enormous files at roughly 10 MB per minute of CD-quality stereo. FLAC stores exactly the same audio using lossless compression, typically landing at 50-60% of the WAV size, which is why it has become the standard for music archives, library backups and moving recordings between machines. This converter runs entirely inside your browser using a WebAssembly build of FFmpeg, so your files are never uploaded to any server - no queue, no upload wait, and no size limit beyond your device's own memory. It is completely free with no signup, account, watermark or install. Drop in several WAV files at once and they convert one after another, each with an inline preview player and a Download button. FLAC is lossless, so there is no bitrate setting to choose.
Frequently Asked Questions
Does converting WAV to FLAC lose any quality?
No. FLAC is a lossless codec, so the audio it stores is bit-for-bit identical to your original WAV - nothing is discarded, and decoding the FLAC gives you back exactly the same samples. The only thing that changes is the file size, which typically drops to around 50-60% of the WAV. You can convert the FLAC back to WAV later with no quality change at all.
How do I convert WAV to FLAC?
To convert WAV to FLAC, open the WAV to FLAC converter and drag your WAV files onto the drop area, or click it to browse and choose them. Conversion starts automatically as soon as the files are added, running one after another, and each finished FLAC appears as a row you can download. You can add several WAV files at once. Every row shows the new filename, the file size, and an inline preview player so you can listen before you hit Download. The whole conversion runs inside your browser using a WebAssembly build of FFmpeg, so your audio is never uploaded anywhere.
How much smaller will my FLAC file be than the WAV?
Expect roughly 50-60% of the original WAV size, so a 100 MB WAV usually lands somewhere near 50-60 MB as FLAC. The exact figure depends on the music itself - dense, loud material compresses less than quiet or sparse recordings. Because FLAC is lossless, that saving costs you nothing in audio quality.
Is this WAV to FLAC converter free and private?
Yes, it is completely free and genuinely private. There is no signup, no account, no watermark and nothing to install, and because the conversion happens inside your browser with a WebAssembly build of FFmpeg, your WAV files never leave your device or touch a server. That makes it safe for unreleased music, client work, interviews and other confidential recordings.
Is there a file-size limit for WAV files?
The site imposes no file-size limit, because nothing is uploaded - the only real ceiling is how much memory your own device can spare. That said, very large files of roughly a few hundred MB or more can be slow or run out of memory on phones, and WAV files get big fast at about 10 MB per minute. For long recordings or full albums, use a desktop browser.
Why should I choose FLAC instead of MP3 for my WAV files?
Choose FLAC when you want to save space without giving up a single bit of audio - it is the archival and audiophile choice, and you can always make MP3s from it later. MP3 is lossy: it throws data away permanently and shrinks files much further, which is better when compatibility or minimum size matters more than perfect fidelity. This tool converts WAV to either one.
Does this work on iPhone, Mac and Android?
Yes. It runs in any modern browser on Windows, Mac, Linux, iPhone and Android, with no app to install on any of them. The first conversion downloads the roughly 32 MB converter engine, which your browser then caches so later conversions start instantly. On phones, stick to shorter files - long WAV recordings can exhaust mobile memory.