Convert MKV to FLAC Online — Free & Fast | AnyConv

MKV to FLAC Converter

Quickly convert multiple mkv files to flac — free & online.

Drag & drop your files here or click to upload

How to convert MKV to FLAC online

Follow these simple steps to convert mkv files to flac using AnyConv. It works on all devices — Windows, Mac, Linux, iPhone, Android.

Upload your MKV file

Drag & drop your file into the upload area. You can also click to select it manually. Max file size: 100 MB.

Start converting

Hit the “Convert” button to turn your MKV into FLAC. The process usually takes just a few seconds.

Download your FLAC

Once ready, download your converted file instantly. The download link is private and only works on your device.

What is a MKV file?

MKV (Matroska Video) is a flexible, open-standard container format capable of holding unlimited video, audio, subtitle tracks, and metadata. It’s popular for high-quality video content, including HD and Blu-ray rips.

MKV is widely supported and ideal for movies, series, and complex media projects. It’s open-source and favored for its advanced features and strong compression support.

How to open MKV files

MKV files are supported by VLC, MPC-HC, KMPlayer, and many smart TVs and media servers. It's a preferred format for high-definition video and multiple tracks.

Use AnyConv to convert MKV to MP4 or another format for broader compatibility.

Key facts about MKV

  • Full name: Matroska Video File
  • Extension: .mkv
  • MIME type: video/x-matroska
  • Developed by: Matroska.org
  • Initial release: 2002

Useful links and resources

What is a FLAC file?

FLAC (Free Lossless Audio Codec) is one of the most popular formats for storing high-quality digital music without any loss in audio fidelity. It compresses audio efficiently while preserving every bit of the original recording — unlike MP3 or AAC, which are lossy.

FLAC is widely used by audiophiles and music collectors due to its open-source nature, excellent compression ratio, and support for rich metadata. It has become a standard in the world of lossless digital audio.

How to open FLAC files

FLAC files can be played with VLC, Foobar2000, Winamp, and many modern smartphones. FLAC is also supported by popular audio editors and library tools like MusicBee.

To convert FLAC to MP3 or AAC for portable use, AnyConv offers a free and fast online solution.

Key facts about FLAC

  • Full name: Free Lossless Audio Codec
  • Extension: .flac
  • MIME type: audio/flac
  • Developed by: Xiph.Org Foundation
  • Initial release: 2001

Useful links and resources

Convert to FLAC

Want to get a file in FLAC format? Choose the original format you’re starting with — AnyConv can quickly convert dozens of file types into FLAC.

❓ Frequently Asked Questions

Answers to common questions about converting MKV to FLAC
  • Do I need to register to convert MKV files?
    Not at all! You can convert MKV to FLAC without signing up or installing anything.
  • Is it safe to convert MKV to FLAC on AnyConv?
    Absolutely. All MKV and FLAC files are securely handled and automatically deleted after 1 hour. Nobody can access your data.
  • Will the quality change after converting MKV to FLAC?
    We do our best to preserve the original quality during MKV to FLAC conversion. The result is accurate and clean.
  • How long does it take to convert MKV to FLAC?
    Most conversions from MKV to FLAC take just a few seconds — even for larger files.
  • Can I upload more than one MKV file?
    Yes, batch conversion is supported. You can convert multiple MKV files to FLAC at once — fast and easy.
  • What browsers support MKV to FLAC conversion?
    All modern browsers! Chrome, Firefox, Safari, Edge — AnyConv runs online and supports converting MKV to FLAC on any platform.
MKV to FLAC – User Rating
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