Convert MKV to MP3 offline
Convert local MKV files to MP3 files offline by JavaScript in your web browser without any software downloads or file uploads!
OUTPUT FILES:
| # | File Name | File Size | Actions |
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How to convert MKV to MP3 offline
Choose local MKV files, choose "MP3" as target audio format, then click the "CONVERT OFFLINE" button to start offline conversions in bulk. File size can be up to 2GB. Please note this offline audio converter only works in web browsers that support new technologies such as WebAssembly, Shared Array Buffer and Site Isolation. Use online converter instead if this offline converter doesn't work in your web browser.
| Name | MKV | MP3 |
| Full name | Matroska Video | MPEG-1 or MPEG-2 Audio Layer III |
| File extension | .mkv, .mk3d, .mka, .mks | .mp3 |
| MIME | video/x-matroska, audio/x-matroska | audio/mpeg, audio/MPA, audio/mpa-robust |
| Developed by | www.matroska.org | Fraunhofer Institute |
| Type of format | Container format | Digital audio |
| Introduction | The Matroska Multimedia Container is an open standard free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file. It is intended to serve as a universal format for storing common multimedia content, like movies or TV shows. | MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is an audio coding format for digital audio which uses a form of lossy data compression. It is a common audio format for consumer audio streaming or storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on most digital audio players. |
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