Online AAC to FLAC converter | Free GroupDocs Apps

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Convert AAC to FLAC

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We have already processed 5,838,589 files with total size of 9,548,346 Mbytes

Convert AAC to FLAC files online with our free audio converter app. No matter your platform — Windows 10, Mac or iPhone — you can convert AAC audio files with any bitrate rapidly.

Popular audio formats include MP3, AAC, WAV, and FLAC. MP3 and AAC are widely used for streaming and portable devices due to their compressed size, while WAV and FLAC offer higher sound quality, often used in professional audio work. Leading platforms for audio playback and distribution include Spotify, Apple Music, YouTube Music, and SoundCloud.

Simply change AAC to FLAC by uploading your file, choosing a target format, and clicking Convert. Your file will be ready to download instantly. No registration required.

Check our video

AAC

Advanced Audio Coding

AAC (Advanced Audio Coding) is a digital audio coding standard designed to provide high-quality audio at lower bitrates compared to MP3, making it a popular format for streaming and storage. It is widely supported by platforms like iTunes, YouTube, and Android devices, and can be created or edited using tools like Audacity, FFmpeg, and Adobe Audition. The format uses advanced compression techniques, such as perceptual noise shaping and temporal noise shaping, to optimize audio quality while maintaining efficient file sizes, and it supports multiple channels for surround sound and metadata for enhanced functionality.

FLAC

Free Lossless Audio Codec

FLAC (Free Lossless Audio Codec) is an open-source audio format designed for lossless compression, preserving original audio quality while reducing file size. It is widely supported by media players like VLC, Foobar2000, and streaming platforms such as Tidal, and can be created or converted using tools like Audacity or XLD. FLAC files use metadata tagging (e.g., ID3, Vorbis comments) and support high-resolution audio, multichannel audio, and optional error-checking for data integrity.

How it works

How to convert AAC to FLAC

Step 1

Click inside the file drop area to upload AAC file or drag & drop AAC file.

Step 2

Click on Convert button. Your AAC files will be uploaded and converted to FLAC result format.

Step 3

Download link of result files will be available instantly after conversion.

Step 4

You can also send a link to the FLAC file to your email address.

FAQ

Questions & Answers

Which browser is best for converting AAC files?

You can use any modern browser, such as Google Chrome, Firefox, Opera, or Safari, to convert your AAC files seamlessly.
How long do you keep my files on your servers?

Your files are stored securely on GroupDocs servers for 24 hours. After that, they are automatically deleted.
How can I access my AAC conversion results?

Once the conversion is complete, you’ll receive a download link. You can download the file instantly or choose to send the link to your email.
How fast is the AAC conversion process?

The conversion speed varies depending on the file size. Most AAC files are converted within a few seconds.
Why is the AAC to FLAC conversion taking longer than expected?

Large file conversions can be time-consuming because the process often involves re-encoding and re-compressing the data, which requires significant computational resources.

Other Supported Conversions

You can also convert AAC into many other file formats. Please see the complete list below.

AAC TO MP3
MP3
AAC TO AAC
Advanced Audio Coding
AAC TO AIFF
Audio Interchange File Format
AAC TO M4A
M4A file format
AAC TO WMA
WMA file format
AAC TO AC3
AC3 file format
AAC TO OGG
OGG file format
AAC TO WAV
WAV file format

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