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HomeFLAC vs M4A
.flac
.m4a

FLAC vs M4A

Compare Free Lossless Audio Codec and MPEG-4 Audio formats — understand the key differences and when to use each

Format Overview

FLAC

Free Lossless Audio Codec

FLAC (Free Lossless Audio Codec) is an open-source audio format that provides lossless compression — reducing file sizes by 50-70% compared to WAV while preserving 100% of the original audio data. FLAC was created by Josh Coalson in 2001 and has become the gold standard for lossless music archiving. It supports sample rates up to 655,350 Hz, bit depths up to 32-bit, and up to 8 channels. FLAC includes extensive metadata support (Vorbis comments), embedded album art, and CUE sheet integration. The format is supported by most music players, streaming services (Tidal, Qobuz, Amazon Music HD), and audiophile hardware. FLAC decoding is computationally lightweight, making it suitable for portable devices. For audiophiles, FLAC represents the optimal balance between file size and perfect audio quality — significantly smaller than WAV but with zero compromise in sound reproduction.

.flacaudio

M4A

MPEG-4 Audio

MPEG-4 Audio (.m4a) is a audio file format.

.m4aaudio

FLAC vs M4A: Feature Comparison

FeatureFLACM4A
Full NameFree Lossless Audio CodecMPEG-4 Audio
File Extension.flac.m4a
Categoryaudioaudio
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use FLAC vs M4A

Use FLAC when you need:

  • •Files in Free Lossless Audio Codec format for maximum compatibility
  • •Industry-standard audio format support
  • •Wide software and platform compatibility

Use M4A when you need:

  • •Files in MPEG-4 Audio format for specific workflows
  • •Optimized audio format features
  • •Modern format advantages and smaller file sizes

Convert Between Them

FLAC M4AM4A FLAC
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Frequently Asked Questions

What is the difference between FLAC and M4A?
FLAC (Free Lossless Audio Codec) and M4A (MPEG-4 Audio) are both audio file formats. FLAC files use the .flac extension while M4A uses .m4a. They differ in compression, quality, compatibility, and intended use cases.
Can I convert FLAC to M4A for free?
Yes! Convert999 lets you convert FLAC to M4A completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.
Which is better, FLAC or M4A?
It depends on your use case. FLAC (Free Lossless Audio Codec) may be better for certain workflows, while M4A (MPEG-4 Audio) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.
Is it safe to convert files on Convert999?
Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

FLAC Converter

Convert from FLAC

M4A Converter

Convert from M4A

File Tools

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Convert to FLAC

All sources → FLAC

Convert to M4A

All sources → M4A

Format Statistics

Trends & data 2025

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