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HomeAMR vs CAF
.amr
.caf

AMR vs CAF

Compare Adaptive Multi-Rate Audio and Core Audio Format formats — understand the key differences and when to use each

Format Overview

AMR

Adaptive Multi-Rate Audio

Adaptive Multi-Rate Audio (.amr) is a audio file format.

.amraudio

CAF

Core Audio Format

Core Audio Format (.caf) is a audio file format.

.cafaudio

AMR vs CAF: Feature Comparison

FeatureAMRCAF
Full NameAdaptive Multi-Rate AudioCore Audio Format
File Extension.amr.caf
Categoryaudioaudio
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use AMR vs CAF

Use AMR when you need:

  • •Files in Adaptive Multi-Rate Audio format for maximum compatibility
  • •Industry-standard audio format support
  • •Wide software and platform compatibility

Use CAF when you need:

  • •Files in Core Audio Format format for specific workflows
  • •Optimized audio format features
  • •Modern format advantages and smaller file sizes

Convert Between Them

AMR CAFCAF AMR
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Learn More About These Formats

AMR Converter CAF Converter

Frequently Asked Questions

What is the difference between AMR and CAF?
AMR (Adaptive Multi-Rate Audio) and CAF (Core Audio Format) are both audio file formats. AMR files use the .amr extension while CAF uses .caf. They differ in compression, quality, compatibility, and intended use cases.
Can I convert AMR to CAF for free?
Yes! Convert999 lets you convert AMR to CAF 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, AMR or CAF?
It depends on your use case. AMR (Adaptive Multi-Rate Audio) may be better for certain workflows, while CAF (Core Audio Format) 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.

AMR Converter

Convert from AMR

CAF Converter

Convert from CAF

File Tools

Compress, resize, merge

Convert to AMR

All sources → AMR

Convert to CAF

All sources → CAF

Format Statistics

Trends & data 2025

More Format Comparisons

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