Is FLAC to AIFF conversion lossless?

Yes, completely. FLAC stores lossless compressed audio, and AIFF stores uncompressed audio. The decoded audio is bit-for-bit identical — no quality is lost.

Why is the AIFF file larger than the FLAC?

FLAC uses lossless compression (like ZIP for audio) that reduces file sizes by 30-50%. AIFF is fully uncompressed, so it is larger despite containing the exact same audio data.

Can I convert high-res 24-bit/96 kHz FLAC to AIFF?

Yes. AIFF fully supports high-resolution audio. The bit depth and sample rate from your FLAC source are preserved exactly in the output AIFF.

Does Logic Pro X prefer AIFF over FLAC?

Logic Pro can import both, but AIFF is Apple's native format with the deepest integration. AIFF files load and process with minimum overhead in Logic Pro's audio engine.

Can I convert back to FLAC later without quality loss?

Yes. Since both formats are lossless, you can convert back and forth between FLAC and AIFF indefinitely with zero quality degradation.

FLAC to AIFF Converter

FLAC and AIFF are both lossless, but Logic Pro and Apple's audio ecosystem prefer AIFF as the native uncompressed format. Converting FLAC to AIFF gives you bit-perfect audio in the format that Apple tools handle most efficiently, with zero quality loss in the process.

100% Private — Your files never leave your device

Convert AIFF to FLAC instead

FLAC to AIFF is a perfectly lossless conversion. FLAC decompresses to the same PCM audio data that AIFF stores natively. Every sample, every bit is preserved exactly — this is a mathematical guarantee of the lossless process.

How to Convert FLAC to AIFF

1
Upload your FLAC audio file to the converter.
2
Choose AIFF as the output format.
3
Click Convert and download your lossless AIFF file.

FLAC vs AIFF — Format Comparison

Feature	FLAC	AIFF
Full Name	Free Lossless Audio Codec	Audio Interchange File Format
Type	Audio	Audio
Codec	FLAC	PCM (uncompressed)
Lossless	Yes	Yes
Extension	.flac	.aiff
Best For	Audiophile music collections	Professional music production on Mac (Logic Pro, GarageBand)

FLAC Strengths

100% lossless — bit-for-bit identical to original
Open source and royalty-free
50-60% smaller than uncompressed WAV

AIFF Strengths

Lossless, uncompressed audio quality
Native support on macOS and all Apple devices
Industry standard for Mac-based music production

Frequently Asked Questions

When to Convert FLAC to AIFF

Importing FLAC music into Logic Pro for sampling or remix projects
Converting FLAC stems received from collaborators for Mac-based mixing
Preparing FLAC audio for Apple Loops or sound library creation
Standardizing a mixed FLAC/AIFF library to AIFF for consistent Mac workflows

Related Conversions

FLACMP3 FLACWAV FLACAAC FLACOGG MP3AIFF WAVAIFF AACAIFF OGGAIFF

Embed This Converter on Your Website

Add a free FLAC to AIFF converter to your site with one line of code. No API key needed.

Get Embed Code

About Our FLAC to AIFF Converter

This converter uses FFmpeg compiled to WebAssembly (WASM) to transform your FLAC files into AIFF format entirely inside your web browser. When you select a file for conversion, the processing happens locally on your device. Your file is never uploaded to any server, never transmitted over the internet, and never stored anywhere outside your own computer. This privacy-first architecture makes our tool safe for confidential and sensitive content — including legal recordings, medical files, financial presentations, personal media, and any other material you would not want on a third-party server.

The conversion process works by decoding the FLAC input using FFmpeg's highly optimized decoders, then encoding the output in AIFF format with carefully tuned settings that balance quality and file size. When possible, the tool uses stream copy mode to remux (rewrap) compatible streams without re-encoding, which preserves the original quality with zero generational loss. When re-encoding is necessary due to codec differences between the two formats, the converter uses high-quality encoding settings to minimize any visible or audible quality reduction.

Supported input formats include MP3, WAV, AAC, FLAC, and OGG for audio, with automatic detection of the codecs and parameters inside your source file. The output is optimized for maximum compatibility with modern devices and platforms including Windows, macOS, Linux, iOS, Android, smart TVs, and all major web browsers.

Why browser-based conversion is safer: traditional online converters require you to upload your file to a remote server, where it is processed by third-party infrastructure and then made available for download. This workflow exposes your data to interception during upload, unauthorized access on the server, unclear data retention policies, and potential data breaches. Professionals in regulated industries such as healthcare (HIPAA), legal (attorney-client privilege), and finance (SOX, GDPR) often cannot use server-based converters without violating compliance requirements. Our WebAssembly-powered approach eliminates all of these risks by ensuring your data never leaves the browser sandbox on your own device.

The tool handles files up to 500 MB on desktop browsers and 200 MB on mobile devices. No account registration, no software installation, and no recurring subscription is required. Conversion typically completes in seconds for small files and a few minutes for larger ones, depending on your device's processing capabilities. Once the conversion is finished, you can download the result immediately and the source data is discarded from browser memory.