Convert Waveform Audio (.wave) to Free Lossless Audio Codec (.flac) online for free. Fast, secure audio conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .wav 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.
Converting WAVE to FLAC (Free Lossless Audio Codec) provides lossless compression that reduces file size by 40-60% while guaranteeing bit-perfect audio reconstruction. WAVE files (.wave or .wav) contain uncompressed PCM data — FLAC encodes this data using linear prediction and entropy coding without discarding any information.
FLAC was created by Josh Coalson in 2001 and has become the universal standard for lossless audio distribution, archival, and audiophile listening. Unlike lossy codecs (MP3, AAC), FLAC decoding produces output that is mathematically identical to the original WAVE source.
WAVE files consume enormous storage — a typical album at CD quality uses 600-700 MB. FLAC reduces this to 250-400 MB with zero quality compromise. For large audio libraries, this 40-60% savings represents hundreds of gigabytes recovered without sacrificing a single audio sample.
FLAC also offers superior metadata support compared to WAVE — Vorbis comments can store rich tag data including embedded album artwork, ReplayGain values, and custom fields. FLAC is natively supported on Android, Linux, and most modern audio equipment, making it the preferred lossless format outside the Apple ecosystem.
FFmpeg reads the WAVE RIFF/PCM data and encodes using FLAC's prediction and residual coding. FLAC divides audio into blocks (typically 4096 samples), applies linear prediction to each block, and entropy-codes the residuals. Compression level (0-12) controls prediction order complexity and search depth. Level 5 (default) offers good compression with fast encoding; level 8 squeezes a few percent more but takes significantly longer. FLAC supports up to 32-bit/655 kHz resolution.
Mathematically lossless — guaranteed. Decoding FLAC produces PCM data that is bit-identical to the original WAVE source. This is not an approximation or marketing claim — it is a mathematical property of the codec. You can verify by decoding FLAC to WAVE and performing a binary comparison. There is zero quality difference.
| Device | WAV | FLAC |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No |
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Resolution: N/A
Bitrate: 256 kbps
AAC format required
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
WAVE to FLAC is the standard conversion for anyone who wants smaller files without any quality compromise. Use it for archival, distribution, and everyday lossless listening.
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HTTPS 加密上传
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文件处理后自动删除
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即刻开始转换
随处可用
任何浏览器，任何设备
| No |
| 特性 | WAV | FLAC |
|---|---|---|
| 全称 | Waveform Audio File Format | Free Lossless Audio Codec |
| 扩展名 | .wav | .flac |
| 最适合 | Lossless quality | Lossless compression |