Convert WAV to FLAC Online
Need to convert WAV to FLAC right now? Drop your file and get results in seconds. Everything runs in your browser. Your audio never leaves your device.
Drop your WAV file here or click to browse
WAV (.wav) · Max 20 MB
AudioUtils converts WAV to FLAC using WebAssembly. The entire process happens locally. No upload, no server, no waiting in a queue.
Open any browser. Pick your file. Click convert. The FLAC file downloads instantly. Works on any device with a modern browser.
Both WAV and FLAC are lossless. This conversion preserves every sample. No quality is lost. Free tier handles input files up to 20MB file size limit with a 10-second preview output. Upgrade to Pro for unlimited, full-length conversions up to 500MB file size limit.
Frequently Asked Questions
Is WAV to FLAC truly lossless?
Yes, 100%. FLAC compression is mathematically lossless. You can convert WAV to FLAC and back to WAV and get a bit-identical file. No audio data is lost.
How much space does FLAC save over WAV?
Typically 40-60%. A 50MB WAV file becomes roughly 25-30MB as FLAC. The exact ratio depends on the audio content — simpler sounds compress better.
Can all devices play FLAC?
Most modern devices support FLAC. Android has native support. iPhone added FLAC support in iOS 11. Windows supports it natively in Windows 10+. Older devices may need MP3 or AAC instead.
Should I keep my WAV originals after converting to FLAC?
Not necessary. FLAC is lossless — you can always convert back to WAV with identical quality. Many professionals archive exclusively in FLAC to save storage.
How much smaller will the FLAC be?
Typically 40–60% smaller than the source WAV. A 50 MB WAV becomes 20–30 MB FLAC. Compression ratio varies by content: sparse recordings (voice, acoustic guitar) compress more than dense material (orchestral, electronic). The audio is bit-identical regardless of compression ratio.
Can I use FLAC files on iPhone and iTunes?
Yes. Apple Music and iTunes on macOS and iOS have supported FLAC natively since 2017. On iPhone, import FLAC files via the Files app or through Finder. Older iPhones running iOS 10 or earlier don't support FLAC natively — use ALAC (Apple Lossless) instead.
Are my files uploaded to a server?
No. Conversion runs entirely in your browser using FFmpeg compiled to WebAssembly. Your WAV never touches our servers.
About WAV
Uncompressed audio format. Perfect quality with no data loss. Standard for music production and professional audio work.
About FLAC
Lossless compression. Perfect quality at roughly half the size of WAV. The choice for audiophiles and archiving.