WAV to FLAC Converter
Convert WAV to FLAC free — no upload, no signup
To convert WAV to FLAC, drop your WAV audio files into the box below and click Convert. Fylo converts with ffmpeg running inside your browser, so nothing is uploaded and there's no signup or watermark. FLAC keeps every sample identical while roughly halving the size.
Drop audio files here
or tap to browse · paste with Ctrl+V · add many at once
Your files never leave your device
FLAC is lossless — no bitrate to choose. Sample rate and channels are under Advanced.
Advanced
How to convert WAV to FLAC
Add your WAV files
Drag and drop WAV files into the box or tap to choose them. The converter engine (about 31 MB) downloads once, the first time you convert.
Check the settings
FLAC is lossless, so there's no bitrate to pick. Change sample rate or switch to mono under Advanced if a device needs it.
Convert and download
Click Convert, then download each FLAC file or all of them as one ZIP.
Why convert WAV to FLAC?
Archiving recordings, CD rips and masters as FLAC saves space without any loss.
What happens when you convert WAV to FLAC?
FLAC is lossless: decoding the FLAC gives back exactly the same samples as the WAV. Typical music shrinks to 50–70% of the WAV size; silence and speech compress even more.
How does Fylo convert WAV to FLAC?
Fylo decodes the PCM audio in the WAV with ffmpeg compiled to WebAssembly and encodes it with FLAC lossless compression. Both formats are lossless, so the decoded samples are identical; only the container and file size change (a 3-minute song is ≈ 32 MB as WAV and ≈ 18–24 MB as FLAC). The original sample rate and channel layout are kept unless you change them under Advanced.
What's the difference between WAV and FLAC?
WAV was introduced by Microsoft and IBM in 1991 and, like AVI, uses the RIFF container. Most WAVs hold uncompressed PCM audio: CD quality (44.1 kHz, 16-bit, stereo) runs at 1,411 kbps, or about 10.6 MB per minute.
FLAC (Free Lossless Audio Codec) was released in 2001 and later maintained by the Xiph.Org Foundation. It compresses PCM audio like a ZIP file compresses data: nothing is thrown away, so a FLAC decodes to exactly the same samples as the source WAV, typically at 50–70% of the size.
Learn more: WAV format guide · FLAC format guide
| Property | WAV | FLAC |
|---|---|---|
| Compression | None (PCM) | Lossless |
| Typical bitrate | 1,411 kbps (CD quality) | ≈ 700–1,100 kbps |
| 3-minute song | ≈ 32 MB | ≈ 18–24 MB |
| Tags and cover art | Limited | Yes (with cover art) |
| Compatibility | Universal on computers; editors and DAWs | Android, Windows 10+, macOS, most players and hi-fi gear |
| Best for | Recording, editing, mastering | Archiving music without quality loss |
| Introduced | 1991 | 2001 |
Frequently asked questions
Is WAV to FLAC really lossless?
Yes — FLAC compresses like a ZIP file for audio. Nothing is discarded.
Can I convert FLAC back to WAV?
Yes, at any time, with an identical result.
Is my WAV file uploaded to a server?
No. Fylo runs ffmpeg, the same engine used by professional video tools, compiled to WebAssembly inside your browser. Your WAV file is read directly from your device and never sent anywhere.
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