FLV to MKV - Convert video online

Conversion Results:
# Output File Source File Action

How to convert FLV to MKV:

1. Click the "Choose Files" button to select multiple files on your computer or click the "URL" button to choose an online file from URL, Google Drive or Dropbox. The source file can also be audio format. Video and audio file size can be up to 200M. You can use file analyzer to get source video's detailed information such as video codec, duration and bitrate.

2. Set target video format, bitrate, aspect ratio, frame size and frame rate. All audio streams will be removed if the "Mute" option is checked. The target video format can be MP4, AVI, FLV, MPG, MKV, WMV, M2TS, WEBM, ASF, MOV, M4V, RM, VOB, OGV or GIF.

3. Click the "Convert Now!" button to start batch conversion. It will automatically retry conversion on another server if one fails, please be patient while converting. The output files will be listed in the "Conversion Results" section. Click icon to show file QR code or save file to cloud storage services such as Google Drive or Dropbox.

FLV vs MKV:
Name FLV MKV
Full name Flash Video Matroska Video
File extension .flv, .f4v, .f4p, .f4a, .f4b .mkv, .mk3d, .mka, .mks
MIME video/x-flv video/x-matroska, audio/x-matroska
Developed by Adobe Systems www.matroska.org
Type of format Media container Container format
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. 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.
Technical details There are two different video file formats known as Flash Video: FLV and F4V. The audio and video data within FLV files are encoded in the same manner as they are within SWF files. The F4V file format is based on the ISO base media file format and is starting with Flash Player 9 update 3. Both formats are supported in Adobe Flash Player and developed by Adobe Systems. Matroska is similar in concept to other containers like AVI, MP4, or Advanced Systems Format (ASF), but is entirely open in specification, with implementations consisting mostly of open source software.
Associated programs Adobe Flash Player VLC Media Player
Sample file sample.flv sample.mkv
Wikipedia FLV on Wikipedia MKV on Wikipedia