Convert Windows Media Video (.wmv) to Free Lossless Audio Codec (.flac) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .wmv file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .flac file when it's ready.
WMV's ASF container holds audio encoded as WMA — either WMA Standard (lossy, up to 320 kbps), WMA Pro (multichannel lossy), or WMA Lossless (bit-perfect). FLAC (Free Lossless Audio Codec) is the open-source lossless audio standard, achieving 50–70% compression of PCM data with guaranteed bit-perfect reconstruction. Converting WMV to FLAC extracts the audio from Microsoft's proprietary ecosystem and stores it in the universally supported, patent-free FLAC format — ideal for archival, audiophile collections, and cross-platform lossless audio.
WMA audio is locked into the Microsoft ecosystem — many Linux players, macOS, and web browsers cannot decode it natively. FLAC is the universal lossless audio format: supported on Linux (native), Android (native since 3.1), Windows (via codec pack), macOS (VLC, foobar2000), and most high-fidelity audio equipment. If your WMV contains WMA Lossless audio, converting to FLAC preserves every bit of quality in a format the entire world can play.
FFmpeg decodes the WMA audio stream from the ASF container to raw PCM, then encodes to FLAC at the selected compression level (0–8). FLAC compression is always lossless — the level only affects encoding speed vs. file size, not audio quality. The output preserves the original sample rate, bit depth, and channel count. FLAC supports Vorbis comment metadata, embedded cover art, and cue sheets.
FLAC is mathematically lossless. If the WMV source has WMA Lossless audio, the FLAC output is bit-perfect — a perfect transcodification. If the source is standard WMA (lossy), the FLAC preserves the decoded quality exactly as-is, without adding any further degradation.
| Device | WMV | FLAC |
|---|---|---|
| Windows PC | Native | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
8MB free, 50MB Nitro
WMV to FLAC conversion moves audio from Microsoft's proprietary format to the universal open-source lossless standard. FLAC provides future-proof, cross-platform archival with zero quality compromise.
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| No |
| الميزة | WMV | FLAC |
|---|---|---|
| الاسم الكامل | Windows Media Video | Free Lossless Audio Codec |
| الامتداد | .wmv | .flac |
| الأفضل لـ | Windows native | Lossless compression |