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FLAC Converter [Mac OSX, Windows] - AuI ConverteR 48x44

AuI ConverteR 48x44 is an audiophile FLAC converter (Mac OSX, Windows) to/from mp3, FLAC, WAV, AIFF, m4a, DSF and other popular formats. Safe CD ripper. SACD ISO to FLAC is supported. Split CUE+audio file to FLAC. FLAC up to 32-bit / 384 kHz conversion.
Download for free with full audio processing quality.

March 20, 2023 updated | since September 16, 2013

Author: Yuri Korzunov,
Audiophile Inventory's developer with 25+ year experience in digital signal processing,
author of the articles that make audio easy for beginners

Audiophile FLAC, DSF, DFF..., CUE Converter
to FLAC, WAV, DSF, mp3, DSF, DFF,...

FLAC Converter for Mac OSX, Windows


    for playback music on:
        digital audio player (DAP),
        media server/streamer,
        car stereo.

    FLAC resolution up to 32 bit | 352/384 kHz
    Multichannel and stereo
    Bit-perfect converting and splitting
        (without quality losses) for unaltered sample rate
    Accurate split with 1 sample precision
    Clickless technologies
    Auto and manual artwork assigning to target files
    Easy-to-use software

WARNING: DVD-audio/video, Blu-Ray, DVD/BluRay/CD ISO are NOT supported.
For Modula-R version, SACD ISO, DSF, DFF are supported in proper configurations.
For ISO tracks, DSF, DFF longer than 3 minutes, FREE edition mutes 2-second silence in the output middle and has other restrictions

How do I convert FLAC files on a Mac?

To convert FLAC files on Mac:

  1. Start AuI ConverteR software.

  2. Push Open file button and select FLAC or file with other available extension.
  3. At the main window, select target file type, bit depth, sampling rate.
  4. Push Start button and wait for the conversion to end.
  5. Look at the converted file(s) into the target directory.



Watch and share: How to split CUE FLAC



Format codecs SACD ISO, DFF, mp3, alac, ... automatically download and install FREE codecs from the Internet (during downloading of codecs need an internet connection).

The conversion software has several functional/price options. You can choose one of the editions that have optimal options.


Key features





AuI ConverteR has several price/functionality options that allow saving your budget for the required functionality. You can expand Modula-R abilities later by purchasing new modules. Unlimited-time license, major updates (... 10.x > 11.x > 12.x > ... versions) are paid.

* All prices on this page are in U.S. dollars without V.A.T. and other applicable taxes and fees. The prices are recommended. Information on this page is not a public offer.

FULL-FEATURED version [AuI ConverteR PROduce-RD]

[MINIMUM PRICE] for full functionality of AuI ConverteR, in comparison with Modula-R edition that is including all modules.

FULL-FEATURED version [AuI ConverteR PROduce-RD]
Best Seller


All abilities are included in PROduce-RD version. It allows saving budget, comparing purchasing of the full abilities (all modules) of Modula-R edition. Unlimited-time license, paid major updates (... 10.x > 11.x > 12.x ...).

PCM converter [Modula-R edition]

[MINIMUM PRICE] configuration of WAV, FLAC (compressed/uncompressed), AIFF, ALAC (up to 24 bit / 192 kHz), mp3
audio file converter (PCM formats) [consists of 1 module]

PCM converter [Modula-R edition]
Best Seller


Minimum price configuration to conversion PCM files, including CUE splitter. Don't support CD-audio. May be expanded by purchasing of other modules.

Build custom configurations > Expand functionality > Ask for advice >



Sound quality issues

FLAC converter to FLAC, WAV, AIFF, ALAC provide lossless format transformation without altering musical content.
Here "lossless" mean "identical binary content before and after conversion".

Resampling, bit depth, gain altering are the lossy processing.

FLAC compression has several levels (size vs. compressing speed). Generally, the middle level is recommended.



Read more about FLAC

  1. FLAC format issues >
  2. FLAC to DSF Audio Converter >
  3. 32 bit FLAC Audio Converter >
  4. FLAC CUE Splitter >
  5. Uncompressed FLAC >




  1. Reasmpler sound quality comparison
  2. DSD-to-PCM 2015
  3. FLAC specification



Frequently Asked Questions

What is the best FLAC converter for Mac?

The best FLAC converter for Mac is individual choice.



How do I convert FLAC to Apple Lossless on Mac?

You can convert FLAC to Apple Lossless files on Mac according to the guide...