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Supports: FLAC
FLAC is lossless and WMA (in its standard profile) is lossy, so this conversion trades a smaller file for a permanent, irreversible loss of audio data. Convert to WMA when you specifically need playback on an older Windows PC, Windows Media Player, a Zune, or a Windows-only car stereo or device that expects WMA; if your player handles modern formats, MP3 or AAC is the more portable lossy target. Keep your FLAC originals — once the data is gone, you cannot recover it from the WMA.
| Property | FLAC | WMA (standard) |
|---|---|---|
| Full name | Free Lossless Audio Codec | Windows Media Audio |
| Developer | Xiph.Org Foundation | Microsoft |
| First released | ~2000 (specified in RFC 9639, Dec 2024) | August 17, 1999 |
| Compression | Lossless — no data discarded | Lossy — discards inaudible/low-priority data |
| Typical size | ~50–70% of the uncompressed source | Far smaller; depends on bitrate (64–192 kbps for CD-quality WMA 9) |
| Container / extension | Native FLAC stream (.flac) | Advanced Systems Format (.wma) |
| Sample rate / bit depth | Up to 32-bit, very high sample rates | 44.1 / 48 kHz, 16-bit (standard WMA 9) |
| License | Royalty-free, open-source | Proprietary Microsoft codec |
| Native playback | Windows, macOS, Linux, VLC, most modern players | Windows, Windows Media Player, Xbox 360, Zune; VLC and Winamp on other OSes |
| Best for | Archiving and editing at full quality | Compatibility with older Windows hardware and software |
.wma and cannot take MP3 or AAC.Need a more universal lossy file instead? Use the FLAC to MP3 converter. Starting from an uncompressed master rather than FLAC? See WAV to WMA.
Yes, if you output standard (lossy) WMA. FLAC stores every bit of the original; standard WMA permanently discards data the encoder judges least audible to shrink the file. At higher bitrates (160–192 kbps) the difference is hard to hear on most gear, but it is real and irreversible — keep your FLAC originals as the master.
The tool encodes to the standard Windows Media Audio codec (WMA 9 / WMAV2), which is lossy. WMA Lossless is a separate Microsoft codec with limited hardware support; if you need a truly lossless file, FLAC or ALAC are more widely playable than WMA Lossless, so there is rarely a reason to convert FLAC into it.
Mainly compatibility with the Microsoft ecosystem. WMA was built into Windows, Windows Media Player, Xbox 360, and Zune devices, so some older Windows-only hardware expects it. If your players are not tied to that ecosystem, MP3 or AAC are better lossy choices — they sound comparable at the same bitrate and play on almost everything.
For music, 160–192 kbps gives standard WMA 9 near-CD quality (Microsoft rates the codec for CD-quality output between 64 and 192 kbps). Drop to 96–128 kbps for spoken-word, audiobooks, or podcasts where smaller files matter more than fidelity. In our testing, raising the bitrate toward 192 kbps noticeably increased file size while preserving more high-frequency detail than the 128 kbps default.
Not always natively. WMA support is strongest on Windows; macOS and Linux do not reliably play it out of the box. VLC plays WMA on every major desktop OS, which is the simplest cross-platform option. If you expect Mac or Linux playback, FLAC, MP3, or AAC avoid the problem entirely.
Standard metadata such as title, artist, and album generally carries over, since WMA's ASF container supports tags. Embedded album art and less common fields are not guaranteed to survive every conversion. If complete tagging matters, verify the output in your player and re-tag if needed.
Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public.