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Free FLAC to AU Converter Online

Convert FLAC files to AU quickly and easily online. Upload files up to 2GB and download your converted files in just a few clicks.

Drag & drop your files

JPEG, PNG, PDF, and other formats, up to 2GB

Privacy Files stay private.

Privacy Automatically deleted after 24 hours.

Privacy 2GB upload limit.

4.8/5

Trusted for 1,794,705+ conversions

HOW IT WORKS

Convert FLAC to AU in three steps

Three steps, no account, nothing to install.

01

Upload FLAC files

Drag and drop or upload FLAC files you want to convert to AU.

02

Convert to AU

Select AU as the output format and start the conversion.

03

Download

Download each AU as it finishes, or grab everything as one zip. You can also share a link.

FLAC

FLAC (Free Lossless Audio Codec) is a popular audio format that compresses music without losing quality. Ideal for audiophiles, FLAC preserves the original sound integrity while reducing file size, making it perfect for digital music libraries and high-resolution audio. With widespread support across devices and software, FLAC is the go-to choice for lossless audio compression.

AU

AU files are audio files used for storing digital sound data, commonly found in UNIX systems and early sound applications. They can hold various audio formats, making them versatile for audio playback and manipulation. With robust sound quality and compatibility, AU files are ideal for developers and audio engineers looking to create or handle sound recordings.

USE CASES

Use Cases for FLAC to AU

Here are day to day use cases of FLAC to AU

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Convert FLAC music archive to AU for legacy audio software

Professional audio engineers and musicians often need to use FLAC files in older digital audio workstations or sound editing programs that only support the AU format. Converting ensures compatibility with vintage software systems while maintaining high-quality audio.

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Prepare FLAC audio samples for Sun/Unix systems

Developers and system administrators working with Sun Microsystems, NeXT, or other Unix-based environments need to convert FLAC files to AU format for system sounds, audio applications, or multimedia projects that require this specific compatibility.

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Convert FLAC music library for academic research applications

University researchers and students in audio engineering or music technology programs often need AU format files for specialized analysis software, audio processing experiments, or compatibility with legacy academic tools that don't support FLAC.

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Transform FLAC recordings for telephony system testing

Telecom engineers and QA testers converting high-quality FLAC audio recordings to AU format for testing voice quality, audio codecs, or telephone system performance, as AU is widely supported in telecommunications applications.

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Adapt FLAC sound effects for game development engines

Game developers working with certain engines or platforms that prefer AU format for sound effects and background music need to convert their FLAC audio assets while preserving audio quality and ensuring proper integration.

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Convert FLAC audio books for accessibility software

Educational institutions and accessibility services converting FLAC format audio books to AU for compatibility with specialized text-to-speech systems, screen readers, or assistive technology tools used by visually impaired users.

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Prepare FLAC field recordings for scientific analysis tools

Environmental scientists, biologists, and researchers converting high-quality FLAC field recordings (animal sounds, environmental audio) to AU format for analysis in specialized scientific software used in acoustic ecology or bioacoustics studies.

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Transform FLAC music for embedded systems development

Embedded systems engineers and IoT developers converting FLAC music files to AU format for testing audio capabilities in embedded devices, microcontrollers, or custom hardware where AU's simpler structure is preferred.

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Convert FLAC podcast episodes for broadcast automation systems

Radio stations and podcast producers converting FLAC master recordings to AU format for compatibility with legacy broadcast automation systems, radio station software, or streaming servers that require this specific audio format.

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Adapt FLAC audio lectures for online learning platforms

Educational institutions and e-learning platforms converting FLAC recordings of lectures, seminars, or educational content to AU format for older learning management systems or specialized educational software with format restrictions.

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Transform FLAC music collection for audio restoration projects

Audio archivists and restoration specialists converting FLAC files to AU format for use in specialized audio restoration software that provides better tools for removing noise, clicks, and other artifacts from historical recordings.

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Convert FLAC sound library for cross-platform application development

Software developers creating cross-platform applications that need consistent audio format support across Windows, Linux, and Unix systems, choosing AU as a universally compatible format for their FLAC source files.

MORE FLAC TOOLS

Explore our other audio operations

FLAC (Free Lossless Audio Codec) is a popular audio format that compresses music without losing quality. Ideal for audiophiles, FLAC preserves the original sound integrity while reducing file size, making it perfect for digital music libraries and high-resolution audio. With widespread support across devices and software, FLAC is the go-to choice for lossless audio compression.

Explore all tools

1.8M+

Files converted

and counting

4.8

Average rating

from our users

~4s

Avg. conversion

per file

0

Files kept

Auto-delete in 24h

WHY DRAGDROPDO

Built to be quick, safe, and free

dragdropdo offers seamless flexibility for managing files of any type. Whether it's PDFs, images, or zipped folders, we've got you covered.

Private by default

Files stay encrypted in transit and are automatically removed after 24 hours.

No install required

Run everything in the browser — no desktop app, no sign-up wall to start.

Cloud import

Pull files from Google Drive and keep working without local downloads first.

Share & download

Grab a zip or share a link / QR so teammates can pick up results on any device.

FAQ

Frequently Asked Questions

Answers to frequently asked questions about dragdropdo's FLAC to AU Converter.