Convert AIFF to M4A

AIFF to M4A converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

Drop any file here or click to browse

All file types supported

About formats

AIFF

AIFF (Audio Interchange File Format) is an uncompressed audio container developed by Apple, based on the IFF structure. Like WAV it preserves full audio fidelity and is widely used in professional audio production on macOS, being the default format for Logic Pro and other DAWs.

Developer: Apple
Initial release: 1988
Compression: Uncompressed
Color depth: up to 32-bit float
Transparency: No
Animation: No

Best for

Professional audio production on macOS
Logic Pro and DAW workflows
Studio recording and mastering
High-fidelity audio archival
Apple-ecosystem audio editing

Pros

+Full uncompressed audio fidelity
+Default format for Logic Pro and macOS DAWs
+Supports up to 32-bit float depth
+Multi-track capable

Cons

−Very large file sizes
−No compression by default
−Less common outside macOS
−Not practical for streaming

M4A

M4A is an audio-only MPEG-4 container, commonly used for audio tracks purchased from the iTunes Store. It typically wraps AAC or ALAC audio. M4A offers better quality than MP3 at similar bitrates and is natively supported by Apple devices and most modern media players.

Developer: Apple / ISO/IEC
Initial release: 2001
Compression: Lossy or lossless
Color depth: up to 24-bit
Transparency: No
Animation: No

Best for

Playing iTunes Store audio
Apple ecosystem music storage
Audiobook and podcast delivery
High-quality portable audio
ALAC lossless audio storage

Pros

+Better quality than MP3 at similar bitrates
+Natively supported by Apple devices
+Can wrap lossless ALAC audio
+Multi-track MPEG-4 container

Cons

−Less universal than MP3 on non-Apple devices
−May carry FairPlay DRM
−Slightly more complex container
−Some players lack M4A support

How to convert AIFF to M4A

1
Select AIFF files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.
2
Choose m4a — or any other format you need as a result (more than 200 formats supported).
3
Let the file convert, then download your m4a file right away.

AIFF vs M4A

Property	AIFF	M4A
Compression	Uncompressed	Lossy or lossless
Color depth	up to 32-bit float	up to 24-bit
Multi-track	Yes	Yes
DRM support	No	Yes
Open format	No	No

When to use AIFF vs M4A

AIFF

Professional audio production on macOS
Logic Pro and DAW workflows
Studio recording and mastering
High-fidelity audio archival
Apple-ecosystem audio editing

M4A

Playing iTunes Store audio
Apple ecosystem music storage
Audiobook and podcast delivery
High-quality portable audio
ALAC lossless audio storage

Use cases for AIFF → M4A

Professional audio production on macOS
Logic Pro and DAW workflows
Studio recording and mastering
High-fidelity audio archival
Apple-ecosystem audio editing
Playing iTunes Store audio
Apple ecosystem music storage
Audiobook and podcast delivery
High-quality portable audio
ALAC lossless audio storage

Frequently Asked Questions

Is converting AIFF to M4A free?

Yes. This AIFF → M4A converter runs entirely in your browser and is completely free — no account, no credits, no watermark.

Which devices and platforms can I use to convert AIFF to M4A?

Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.

Are my AIFF files uploaded to a server?

No. Files never leave your device. The entire AIFF → M4A conversion runs locally in your browser, so your data stays private.

Can I convert multiple AIFF files at once?

Yes — batch conversion is supported. Add as many AIFF files as you like and convert them to M4A in one pass, then download the results together.

What is the maximum file size?

There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.

Will converting AIFF to M4A reduce the quality?

Because both formats use lossy compression, the M4A output will not bring back any quality that has already been lost in your AIFF file. Avoid repeated re-encoding to keep the best quality.

Does M4A support transparency?

No — M4A has no alpha channel. Transparent areas of your AIFF file will be filled with a solid background colour in the converted file.

Will the converted M4A file be smaller than the AIFF?

Usually yes. Converting from a lossless or uncompressed format to a lossy one dramatically reduces file size. Typical savings range from 50% to 90%, depending on the quality setting you choose.

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FREE

100% Free

No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.

SIGNUP

No Signup Required

Start converting immediately without creating an account or sharing email address.

PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

USER REVIEWS

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