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CAF to FLAC Converter

Convert CAF (Core Audio Format) audio files to FLAC format for lossless compression with smaller file sizes. Transform Apple's professional audio container to the widely-compatible FLAC with perfect audio quality. Professional-quality audio conversion powered by FFmpeg, all processing happens securely in your browser.

Category: audio
Use Case: Lossless Archiving, Audiophile Collections, Audio Production
Privacy: 100% browser-based

Recommended Settings

For Archiving

  • Level 8 for maximum compression
  • 100% lossless quality
  • Smaller than WAV/CAF, same quality

For Production

  • Level 5 for balanced performance
  • Faster encoding/decoding
  • Suitable for editing workflows

Pro Tips

  • All compression levels are lossless - only file size differs
  • FLAC files are typically 50-60% smaller than CAF
  • Level 8 takes longer but creates smallest files

Most Popular

Most users choose level 5 for balanced compression and speed

When to Use This Tool

Lossless Archiving

FLAC provides perfect quality preservation with 50% compression, ideal for archiving audio collections.

Recommended: Level 5-8

Professional Audio Workflow

Convert CAF files from Logic Pro or GarageBand to FLAC for lossless cross-platform distribution.

Recommended: Level 8

iOS Audio Processing

Convert iOS audio messages and recordings to FLAC for lossless archiving with better compression than WAV.

Recommended: Level 5

How It Works

1

Upload your CAF audio file

2

Select compression level (0-8)

3

FFmpeg processes lossless FLAC encoding

4

Download your converted FLAC file

100% Private

Files never leave your device. All processing happens locally in your browser.

Lightning Fast

Powered by FFmpeg.wasm (WebAssembly) for optimal performance on modern browsers.

Open Source

Built with verified, open-source libraries. Fully transparent.

Frequently Asked Questions

What is CAF format?

CAF (Core Audio Format) is Apple's professional audio container format used in Logic Pro, GarageBand, Final Cut Pro, and iOS audio messages. It's a flexible container that supports high sample rates and multi-channel audio.

What is FLAC format?

FLAC (Free Lossless Audio Codec) is a lossless compression format that preserves 100% of the original audio quality while reducing file size by 40-60%. Unlike MP3 or AAC, no quality is lost.

What compression level should I use?

Level 5 (default) offers a good balance of compression and speed. Level 8 provides maximum compression but takes longer. All levels are lossless - they only affect file size and encoding time, not quality.

Is FLAC better than WAV?

FLAC and WAV have identical audio quality, but FLAC files are 40-60% smaller. FLAC also supports metadata tags, making it more practical for music libraries.

Why convert CAF to FLAC?

Both CAF and FLAC can store lossless audio. FLAC offers better cross-platform compatibility and is more widely supported outside of Apple's ecosystem, while maintaining identical quality with efficient compression.