AC3 to FLAC Converter

Batch convert ac3 files to flac format online for free

Choose files or drag & drop them here.
Only you have access to your files.
All files will be deleted after one hour.

How to convert AC3 files to FLAC online?

Step-by-step guide to convert ac3 to flac using AnyConv. It works on PC (Windows, Mac, Linux) and mobile devices (iPhone, Android).

Upload AC3-file

Drag and drop your AC3 file into the upload area. The maximum file size is 100 MB.


Click "Convert" to change ac3 to flac. The conversion usually takes a few seconds.

Download your FLAC

Now you can download the FLAC file. The download link only works on your device.


  • ❓ How can I convert files from AC3 to FLAC?
    First you need to add file for conversion: drag and drop your AC3 file or click the "Choose File" button. Then click the "Convert" button. When AC3 to FLAC conversion is completed, you can download your FLAC file.
  • ⏱️ How long does it take to convert AC3 to FLAC?
    Audio conversion is pretty fast. You can change AC3 to FLAC in a few seconds.
  • 🛡️ Is it safe to convert AC3 to FLAC on AnyConv?
    Of course! We delete uploaded files immediately, and converted ones after 1 hour. No one has access to your files. File conversion (including AC3 to FLAC) is absolutely safe.
  • 💻 Can I convert AC3 to FLAC on Mac OS or Linux?
    Yes, you can use AnyConv on any operating system that has a web browser. Our AC3 to FLAC converter works online and does not require software installation.

Information about AC3 and FLAC file formats

🔸 File format AC3 FLAC
🔸 Full name Audio Coding 3 FLAC - Free Lossless Audio Codec
🔸 File extension .ac3 .flac
🔸 MIME type audio/ac3, audio/vnd.dolby.dd-raw, audio/x-ac3 audio/x-flac
🔸 Developed by Dolby Digital Xiph.Org Foundation
🔸 Type of format Music File Audio
🔸 Description AC3 is an audio file specifically developed by Dolby Digital to provide surround sound audio. The format is used for audio on many DVDs and Blu-Ray media. For the file to be correctly decoded and output, a DVD player with a Dolby Digital compatible home cinema system is required. It became the de facto standard for surround sound and has held that position since its inception in 1992, with it coming to home cinema in 1995. FLAC (Free Lossless Audio Codec) is an audio coding format for lossless compression of digital audio and is also the name of the reference codec implementation. Digital audio compressed by FLAC's algorithm can typically be reduced to 50-60% of its original size and decompress to an identical copy of the original audio data.
🔸 Technical details AC3 allows for separate audio to be defined for each of the six speakers in the classic cinema and home cinema setup. This produces the effect of surround sound on the person listening to the audio file. The six channels consist of right front, center, left front, rear right, rear left, and a subwoofer. The technical strengths of FLAC compared to other lossless formats lie in its ability to be streamed and decoded quickly, independent of compression level. Compared to compressed audio formats, FFmpeg's FLAC implementation was noted to have the fastest and most efficient embedded decoder of any modern lossless audio format.
🔸 File conversion AC3 conversion FLAC conversion
🔸 Associated programs QuickTime Player, VLC Media Player, Windows Media Player Windows 10, Android, Blackberry 10 and Jolla devices.
🔸 Wiki
AC3 to FLAC Conversion Quality Rating
4.3 (1278 votes)
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