AIFC to AIFF Converter

Convert AIFC to AIFF Online

AIFC (AIFF-C) and AIFF are the same Apple container family — AIFC is the compression-capable variant, while plain AIFF is always uncompressed PCM. This converter decodes whatever is inside your AIFC (μ-law, A-law, IMA ADPCM, MACE, "sowt", or already-uncompressed PCM) and writes a standard 16-bit big-endian PCM AIFF that older or strict tools read without choking on AIFC's compression-type chunk.

How to Convert AIFC to AIFF

1. Upload Your AIFC File: Drag and drop your .aifc file onto the page or click "+ Add Files" to browse. Queue several files to convert them with the same settings in one batch.
2. Set Audio Channel and Sample Rate: Leave Audio Channel and Audio Sample Rate on "Original" for a faithful copy, or use the dropdowns to fold stereo to mono or resample (for example down to 44.1 kHz).
3. Trim the Clip (Optional): Use the Trim control to set a start time and duration if you only need part of the recording; leave it "Unchanged" to keep the whole file.
4. Convert and Download: Click "Convert" and download your AIFF. No sign-up, no watermark.

AIFC vs AIFF at a Glance

Frequently Asked Questions

Will converting AIFC to AIFF improve or restore the audio quality?

No — it cannot add detail back. If your AIFC holds a lossy codec (μ-law, A-law, IMA ADPCM, or MACE), decoding it to uncompressed AIFF PCM stops any further loss and gives you a clean editing master, but it does not recover the detail the original compression discarded. If the AIFC already held uncompressed PCM (compression type NONE or "sowt"), the conversion is effectively a lossless re-wrap into plain AIFF — the samples are unchanged. The reason to convert is compatibility: plain AIFF carries only PCM, so almost every editor, DAW, and player reads it cleanly, whereas AIFC's compression-type chunk can make older or strict tools refuse the file even when the audio inside is fine.

Will the AIFF file be larger than my AIFC?

Often, yes. If the AIFC used a compression codec, the decoded AIFF expands back to full uncompressed PCM and will be noticeably larger — a stereo 44.1 kHz/16-bit minute is roughly 10 MB. If the AIFC was already uncompressed PCM (NONE or "sowt"), the AIFF is about the same size, since both store raw samples. In our testing, a 3-minute IMA ADPCM AIFC of about 8 MB decoded to a 16-bit AIFF of roughly 31 MB.

What bit depth and sample rate does the AIFF output use?

By default the converter writes PCM 16-bit big-endian and preserves the source sample rate, so a 44.1 kHz CD-quality AIFC comes through as 44.1 kHz/16-bit AIFF. Use the Audio Sample Rate dropdown to resample if you need a different rate, and Audio Channel to keep stereo or fold down to mono.

Are my uploaded files kept private?

Yes. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public.

What if I want a small modern file instead of uncompressed AIFF?

AIFF is uncompressed and large, so it's best for editing rather than sharing. For a small, universally playable copy use AIFC to MP3; for an Apple-friendly compressed file use AIFC to M4A. To go the other direction and wrap AIFF back into the AIFF-C container, see AIFF to AIFC.