M4A – MPEG-4 Audio
M4A is an MP4 container for audio, normally AAC. It is the default audio format for iTunes, iPhone voice memos and many podcasts.
More M4A conversionsDrop your M4A files here
or click to choose M4A files · up to 95MB each
How to convert M4A to AIFC
- Choose your files. Click Select File or drag your M4A files into the upload box. You can add many at once.
- Pick the settings. AIFC is already selected as the output format. The conversion starts as soon as a file is added.
- Download. Each file appears in the list when it is ready. Download them one by one, or all together with Download all.
AIFC – Compressed Audio Interchange File
AIFC is a variant of Apple's AIFF format that allows compressed audio.
More AIFC conversionsConverting M4A to AIFC
- Your M4A file is converted on our server and the AIFC result can be downloaded straight away.
Frequently asked questions
How do I convert M4A to AIFC?
Click Select File or drop your M4A file onto the upload box. The converted AIFC appears in the list below with a download button. You can add many files at once and download them together as a ZIP.
Is it really free?
Yes. There is no sign-up and no watermark. To keep the service available for everyone there is a 95MB limit per file and a cap on how many files one connection can process in a short period.
Are my files stored?
Your upload is used only to make the converted file. Images are processed in memory; other files are written to a private temporary folder that is deleted as soon as the conversion finishes. Nothing is kept after the result has been sent back.
Will quality drop?
For images, a little, by design: the image is re-encoded at the Quality you choose (default 75%). Audio and video are re-encoded with high-quality settings; documents keep their text and layout as far as the target format allows. Converting never restores detail that is already missing from the original.
How this works: your file is uploaded over HTTPS and converted on this server with open-source engines (libvips for images, FFmpeg for audio and video, LibreOffice and Pandoc for documents, Calibre for ebooks, Ghostscript and Inkscape for PDF and vector files). Images are processed in memory; other files use a private temporary folder that is deleted as soon as the conversion finishes.