AIFF to FLAC — Format Comparison & Online Converter
Fast, instant AIFF to FLAC conversion. No signup required. Just drop your .aiff file and get .flac in seconds.
Batch Settings
Some metadata may not survive
Your AIFF file may contain ID3v2, AIFF chunks metadata. FLAC has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
还在为AIFF文件体积过大，分享不便而烦恼吗？或是希望将珍藏的无损音频转换成更普及、兼容性更强的格式，但又担心音质受损？别担心，我们懂您的需求。AIFF作为早期苹果设备常用的无损音频格式，音质确实出色，但在跨平台分享，尤其是在微信、游戏等场景下，其庞大的文件大小往往成为阻碍。而FLAC，作为免费开源的无损音频编码，不仅能保持与AIFF相同的音质，文件体积却能大幅缩减，更易于存储和传输。现在，就让我们帮您轻松实现AIFF到FLAC的无损转换，让您的好声音，畅通无阻，随时随地都能享受。
- 微信分享无损音乐
- 游戏背景音乐制作
- 便携设备存储优化
在大陆及东南亚地区，FLAC格式因其开源免费和高效压缩比，在无损音频爱好者中拥有广泛的用户基础，远超专有性较强的AIFF。
About AIFF to FLAC Conversion
AIFF (introduced 1988) and FLAC (introduced 2001) are both audio formats, but they differ in important ways. AIFF is Apple's uncompressed audio format — equivalent to WAV in quality. FLAC is lossless audio compression — bit-for-bit identical to the original at roughly 50-70% of WAV size.
Full Name: AIFF uses Audio Interchange File Format, while FLAC uses Free Lossless Audio Codec. Compression: AIFF uses None (uncompressed), while FLAC uses Lossless. Typical File Size: AIFF uses 10 MB per minute at 44.1 kHz/16-bit stereo, while FLAC uses 5–7 MB per minute (50–70% of WAV).
When you convert AIFF to FLAC, the goal is to convert between formats quickly. Converting AIFF to FLAC maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your AIFF file is decoded and re-encoded as FLAC. The conversion involves 4 steps: (1) your aiff file is uploaded and the format is validated, (2) the file content is decoded into its raw representation, (3) the data is re-encoded in flac format with optimal settings, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you When you specifically need a FLAC file for your workflow. For the opposite direction, CocoConvert also supports FLAC to AIFF conversion.
How to Convert AIFF to FLAC
- 1
Upload .aiff file
Select your AIFF file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .flac
Set FLAC as the output format. The converter uses optimal settings based on the AIFF→FLAC conversion profile.
- 3
Convert
The server-side engine decodes your AIFF file and re-encodes it as FLAC. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .flac file. Multiple output files can be downloaded together.
What Happens When You Convert AIFF to FLAC
Your AIFF audio is decoded into raw PCM samples, then re-encoded as FLAC. No audio quality is lost in this conversion.
Your AIFF file is decoded — compressed audio becomes raw PCM waveform data
The raw audio is re-encoded using Free Lossless Audio Codec's lossless codec
Metadata (tags, artwork, track info) is transferred where FLAC supports it
The FLAC file is saved and ready for download
AIFF vs FLAC — Detailed Comparison
| Feature | .AIFF | .FLAC |
|---|---|---|
| Full Name | Audio Interchange File Format | Free Lossless Audio Codec |
| Compression | None (uncompressed) | Lossless |
| Typical File Size | 10 MB per minute at 44.1 kHz/16-bit stereo | 5–7 MB per minute (50–70% of WAV) |
| Platform Support | Very Wide | Very Wide |
| Browser Support | Limited | Limited |
| Year Created | 1988 | 2001 |
| Open Standard | No | Yes |
Should You Convert AIFF to FLAC?
When to Convert
- ✓When you specifically need a FLAC file for your workflow
Frequently Asked Questions
What is the difference between AIFF and FLAC?
AIFF is Apple's uncompressed audio format — equivalent to WAV in quality. FLAC is lossless audio compression — bit-for-bit identical to the original at roughly 50-70% of WAV size. Full Name: AIFF uses Audio Interchange File Format, while FLAC uses Free Lossless Audio Codec. Compression: AIFF uses None (uncompressed), while FLAC uses Lossless. Typical File Size: AIFF uses 10 MB per minute at 44.1 kHz/16-bit stereo, while FLAC uses 5–7 MB per minute (50–70% of WAV).
Does AIFF to FLAC conversion affect quality?
Converting AIFF to FLAC maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, AIFF or FLAC?
AIFF uses none compression. FLAC uses lossless compression. The better choice depends on whether you prioritize file size or quality.
How long does AIFF to FLAC conversion take?
Most conversions finish in seconds. Larger files or complex audio content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is AIFF or FLAC better for long-term storage?
FLAC is better for archival since it preserves all original data.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.