Top 7 Ways to Convert MKV to MP3 without Losing Quality Online/Offline

Laura Goodwin Mar 31, 2022 Convert Video

If you want to extract the soundtrack or certain audio section from an MKV file, you can convert MKV file to MP3 format. Compared with other audio formats, MP3 is fully compatible with almost all audio players and editors. In other words, MP3 is the most device-friendly format for offline playback.

MKV to MP3

Then here comes the question, which is the best MKV to MP3 converter? If you don’t know how to extract MP3 from MKV video, you can refer to the following tutorials. These are proven ways that can convert video to MP3 online and offline quickly.


Part 1: Superfast MKV to MP3 Converter for MP3 Extraction without Losing Quality

Vidmore Video Converter is the fastest file converter that can convert MKV to MP3 with 50x faster conversion speed. It is equipped with the advanced hardware acceleration and multi-core processor. Each MKV to MP3 conversion can be accelerated automatically. Thus, you can batch convert large MKV videos to MP3 in minutes.

Furthermore, you can fully control the video quality with the professional video processing algorithms. The extracted audio tracks can be saved as MP3 format in the original quality. If you want to shorten your MKV video, you can cut a clip from any part of the MKV video freely. Later, you can convert to MP3 for any device with the MKV to MP3 converter for Windows 10 or Mac.

Main Features of MKV to MP3 Converter Software

Vidmore Video ConverterVidmore Video Converter

  • Extract MP3 from MKV, MP4, AVI, FLV and other 200+ formats without quality loss.
  • 50x faster video conversion speed with the high-speed video processing algorithm.
  • Convert MKV to MP3 with the original quality of your file at a smaller file size.
  • Split a long MKV video into small clips to convert to MP3 format.
  • Edit, enhance and personalize your video and audio files.
Vidmore Video Converter

Best Way to Convert MKV to MP3 with 50x Faster Conversion Speed

Step 1: Free download, install and launch MKV to MP3 converter. Drag and drop MKV files to the main interface.

Add file or folder

Step 2: From the “Profile” list, browse and choose MP3 as the output format. For instance, you can navigate to “General Audio”, “Lossless Audio”, “Apple iPhone” and more to select the compatible MP3 format.

Set MP3 audio format

Step 3: Click “Settings” next to “Profile” to adjust profile settings. Here you can change audio encoder, sample rate, channels, bitrate and more. Click “OK” to save changes.


Step 4: Choose “Clip” on the top toolbar. You can move the clipper or set the start/end time manually. The real-time preview window can show you all details. Click “OK” to exit the window.

Start and End

Step 5: Click “Convert” to start converting MKV to MP3 audio files. Your extracted MP3 files will be in the default output folder.

Start converting

Part 2: Top 3 Online MKV to MP3 Converters to Extract MP3 Music for Free

There are many websites that can convert MKV to MP3 online for free. If you do not want to install third-party programs on your computer, you can complete MKV to MP3 online conversion with the following tools.

Top 1: Convert MKV to MP3 with Vidmore Free Online Video Converter

Vidmore Free Online Video Converter is a 100% free MKV to MP3 converter with no file size limitation. You can convert video to MP3, M4A, AAC and other popular audio formats online in batch. There is no popping-up ads, virus, user tracking and other problems. Well, it can be your best MKV to MP3 converter online.

Step 1: Open Click “Add files to convert” to access its launcher.

Open Vidmore Launcher

Step 2: Click “Add File” to import MKV files to the MKV to MP3 online converter. Unfold the “Audio” list on the lower right corner. Choose “MP3” as the output format.

Set MP3 as output format

Step 3: Click “Settings” next to your MKV file. You can adjust audio settings if necessary.

Adjust audio settings

Step 4: Click “Convert” and set the output folder. Later, you can convert .mkv to .mp3 online for free.

MKV to MP3 conversion

Top 2: Convert MKV to MP3 with Convert Files

Convert Files is a simple online converter. You can convert a MKV file to MP3 online per time. In addition, you can set a download link to your email of the converted MP3 audio.

Step 1: Visit to locate Convert Files.

Step 2: Click “Browse” to add an MKV file to the MKV to MP3 online free converter.

Step 3: Click “Convert” to start converting MKV to MP3 format online.

Convert files

Top 3: Convert MKV to MP3 with Zamzar

Zamzar is capable to convert up to 5 MKV files to MP3 at the same time. All those MKV files should be no more than 150MB. Otherwise, you need to upgrade to increase the file size limitation.

Step 1: Visit Zamzar at

Step 2: Click “Add Files” to add your MKV video files.

Step 3: Click “Convert Now” to extract MP3 audio from MKV for free online.


Part 3: Top 3 Open Source MKV to MP3 Converters to Extract MP3 Audio on Multiplatform

This article collects 3 free and open source media converters. You can convert MP4 and MKV to MP3 for free on multiplatform. However, inexperienced users may not fully control all advanced features.

Top 1: Convert MKV to MP3 Using VLC

VLC Media Player is a popular multimedia converter and editor. You can use VLC as MKV to MP3 converter apk to extract audio tracks on your phone too.

Step 1: Launch VLC Media Player. Choose “Convert/Save” from the “Media” list on the top.

Step 2: Click “Add” to add a MKV file to VLC. Then click “Convert/Save” to proceed.

Step 3: Mark before “Convert” in the “Settings” panel. Select “Audio – MP3” from the “Profile” list.

Step 4: Click “Browse” to set a destination folder.

Step 5: Click “Start” to convert MKV video to MP3 using VLC.


Top 2: Convert MKV to MP3 with FFmpeg

FFmpeg is a command line video converter. You need to type the correct command to convert video and audio files. As for using FFmpeg to extract MP3 from MKV video, you can type the following command. All MKV files in the current directory will be extracted as MP3 format.


Actually, FFmpeg just replaces the MKV file extension with the MP3 file extension. Thus, the filename of the MP3 audio file will not change.

Top 3: Convert MKV to MP3 via Audacity

Audacity is a digital audio editor for Windows, Mac, Linux and Unix-like operating systems. If you want to convert MKV to MP3 with Audacity, you need to install the LAME MP3 Library and FFmpeg first.

Step 1: Download and install the LAME MP3 Library at for Windows or Mac. Do not forget to install FFmpeg.

Step 2: Open Audacity. Choose “Open” from the “File” drop-down list.

Step 3: Browse and import your MKV video to Audacity.

Step 4: Select “Export” from the “File” list. Choose “Export as MP3” from its submenu.

Step 5: Enter the required information and click “OK” to extract audio from video as MP3 format with Audacity.


According to the above paragraphs, the quickest and easiest MKV to MP3 converter software is Vidmore Video Converter. It is a batch converter that can convert any video to MP3 without losing quality. The user interface is clean and intuitive. Thus, you can access all video converting and editing tools directly. If you are not sure whether Vidmore Video Converter works well, you can free download the MKV to MP3 converter full version to have a try right now!

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