Free online AC3 to CAFF converter
Convert AC3 audio to CAFF for Apple-compatible playback or editing.
Convert AC3 to CAFF online - free
Your file is processed instantly and deleted as soon as you download it.
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How it works
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Upload your .ac3 file
Click to browse to select your file you want to convert or simply drag & drop your file into selected area.
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Perform .ac3 to .caff conversion
After successful file upload, click to convert when you are ready.
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How to convert ac3 to caff file
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Source format: AC3
AC3 (Audio Codec 3, also known as Dolby Digital) is a compressed audio format commonly used in DVDs, Blu-ray discs, broadcast TV, and home theater systems. It supports multichannel audio, including 5.1 surround sound, and is valued for efficient compression and broad playback support in consumer electronics. AC3 files are often used when the goal is to preserve surround audio in a compact form.
Target format: CAFF
CAFF (Core Audio Format) is an audio container developed by Apple for macOS and iOS workflows. It can store uncompressed or compressed audio and is designed for high-quality audio handling in Apple software and professional audio environments. CAFF is useful when you need a flexible, modern audio container that works well with Apple tools and can preserve metadata and high-fidelity audio content.
How to perform the conversion
The most reliable way to convert AC3 to CAFF is with FFmpeg, which can read AC3 and write CAFF while preserving the audio stream or re-encoding it as needed.
- Install FFmpeg on your computer.
- Open a terminal or command prompt.
- Run a command such as
ffmpeg -i input.ac3 output.caf. - If you want to control the audio codec inside the CAFF container, specify it explicitly, for example
ffmpeg -i input.ac3 -c:a pcm_s16le output.caffor uncompressed PCM audio. - Check the resulting file in a compatible player or editor, such as Audacity, Logic Pro, or QuickTime Player on macOS.
If you prefer a web-based workflow, you can convert the file on 101convert.com for free, without installing any software.
Notes on quality and compatibility
AC3 is a compressed source format, so converting it to CAFF does not restore lost audio detail. If you choose an uncompressed codec inside CAFF, the file may become much larger, but it can be easier to edit and more compatible with professional audio tools. Compatibility is also important: CAFF is best supported in Apple software, while support in Windows and Linux applications is more limited. For maximum portability, consider whether you actually need CAFF or whether another container such as WAV or AIFF would better suit your workflow.
Note: This ac3 to caff conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.
AC3 vs CAFF: format comparison
How the AC3 and CAFF formats compare on the properties that matter most for this conversion.
| Property | .AC3 Dolby Digital Audio | .CAFF Core Audio File Format |
|---|---|---|
| Compression | Lossy | Both |
| Audio quality | High | High |
| Audio channels | Surround | Multichannel |
| Metadata support | Basic | Basic |
| Streaming | Yes | — |
| DRM protection | No DRM | — |
| Opens in a web browser | No | No |
| Typical file size | Small | Small |
| Open standard | Partly open | No |
| Best used for | Streaming | Music |
| Introduced | 1995 | 2007 |
| Developer | Dolby Laboratories | Apple Inc. |
| MIME type | audio/ac3 | — |
Frequently asked questions
Is the AC3 to CAFF converter free?
Yes, converting AC3 to CAFF on 101convert.com is completely free. No registration, email address or installation is required. If you need a higher file size limit or want to convert more files at once, see our plans.
How large can my AC3 file be?
You can upload AC3 files up to 1000 MB and convert up to 100 files at once in a single batch.
What happens to my uploaded files?
Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.
Do I need to install any software to convert AC3 to CAFF?
No. The AC3 to CAFF conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.
Did the conversion fail?
In most cases, the cause is an incorrect file format. Please upload a valid AC3 file for this AC3 to CAFF conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.