Convert FLV to MP3 offline
Convert local FLV files to MP3 files offline by JavaScript in your web browser without any software downloads or file uploads!
OUTPUT FILES:
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How to convert FLV to MP3 offline
Choose local FLV 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 | FLV | MP3 |
| Full name | Flash Video | MPEG-1 or MPEG-2 Audio Layer III |
| File extension | .flv, .f4v, .f4p, .f4a, .f4b | .mp3 |
| MIME | video/x-flv | audio/mpeg, audio/MPA, audio/mpa-robust |
| Developed by | Adobe Systems | Fraunhofer Institute |
| Type of format | Media container | Digital audio |
| Introduction | Flash Video is a container file format used to deliver video over the Internet using Adobe Flash Player version 6 and newer. Flash Video content may also be embedded within SWF files. Flash Video used to be the de facto standard for web-based streaming video. Notable users of it include Hulu, VEVO, Yahoo! Video, metacafe, Reuters.com, and many other news providers. | 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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