File converter  /  Video  /  Convert to FLV  /  MKV converter  /  FLV to MKV

Convert FLV to MKV

With our free online converter, you can convert flv files to mkv as well as a variety of other formats.

Converting your flv file to mkv is easy with these steps.

Converting your mkv file to flv is easy with these steps.

Icon of «Upload flv-file»
Step 1

Upload flv-file

You can select flv file you want to convert from your computer, Google Drive, Dropbox or simply drag and drop it onto the page.
Icon of «Select «to mkv»»
Step 2

Select «to mkv»

Choose mkv or any of the other 200+ supported formats you'd like to convert to.
Icon of «Download your mkv file»
Step 3

Download your mkv file

Please wait for the conversion to complete, then click on the download button to obtain your converted file in the mkv format.

Converting flv to mkv

Fast and easy
Simply drag and drop your flv files onto the webpage, and you'll be able to convert them to mkv or over 250 different file formats, all without having to register, provide an email address, or include a watermark.
You don't need to worry about security.
As soon as you upload your flv files, we instantly delete them. Converted files are then deleted after 24 hours. Furthermore, we ensure that all file transfers are secure through advanced SSL encryption.
Everything is stored in the cloud.
You don't have to go through the hassle of installing any software. We handle all flv to mkv conversions in the cloud, which means that none of your computer's resources will be used in the process.

Animated Flash Video File

Extension.flv
Category🔵 video
Programs
🔵 Microsoft Windows Photo Gallery Viewer
🔵 VideoLAN VLC Media Player
🔵 Windows Media Player
Main program🔵 FFDShow
Description🔵 This flash video format is defined by the Adobe systems and is commonly used for online videos. There are multiple users of the flash video format such as YouTube, Hulu, VEVO, Yahoo! and other services that you serf online on your iPhone, iPad, or laptop. One can access the flash video on various operating systems by enabling the Adobe Flash Player and web browser plugin or other third-party programs except for iOS.
Technical details🔵 FLV files use the H.263 standard under the Sorenson Spark (FourCCFLV1) codec, and there are various reasons for it, such as;
  • These are the first codec files that are supported by Flash Player.
  • The heavy usage throughout other versions being able to support this same codec.
The audio can be recorded over the video using a microphone and Nellymoser Asao codec. By using the bitmap tile and lossy compression while reducing color depth, the screen share is possible. But the primary difference is that the screen share done by the 2nd way is only compatible with Flash Player 8.
Developer🔵 Adobe Systems Incorporated
MIME type
🔵 video/x-flv

Matroska Video File

Extension.mkv
Category🔵 video
Programs
🔵 VLC Media Player
Main program🔵 VLC Media Player
Description🔵 MKV Matroska is an open-source multimedia container format that supports more than one audio and subtitle tracks in the same file. It is the most convenient file type where you can add a large sum of data, such as videos, audios, texts, and various images. It is a RAW format which you can later flip and separate based on needed data tracks.
Technical details🔵 Whether it is video, audio, subtitle, or image, every file will be stored in a separate data line. It is a lot similar to the MP4 or AVI format, although when users are packaging an MKV file, they rarely bundle all the tracks within the file. Various media players don't even support the MKV video format; therefore, the users need to use specialized media players who can help the MKV format, such as VLC media player.
Developer🔵 Steve Lhomme
MIME type
🔵 video/x-matroska

FAQ

❓ How do I change flv to mkv?
To get started, either pick a file you want to convert from flv and select it or drag and drop it into the conversion tool. Next, select the desired format that you wish to convert your file to. Once you have selected the format, click the "convert" button and wait for the tool to finish converting your file.
⏳ What is the estimated time it will take to convert flv to mkv?
Typically, image conversions only take a few seconds, so you can expect a speedy conversion when changing flv to mkv.
🛡️ Can I trust OnlineConvertFree to convert flv to mkv securely?
Absolutely! We take your security seriously, and guarantee the protection of your uploaded and converted files. No one will have access to your information since we delete all files once the conversion process is complete. You can trust that all types of conversions, including flv to mkv, are 100% safe on OnlineConvertFree.
📱 Is it possible to convert flv to mkv without having to install any software?
Yes, that's right! OnlineConvertFree doesn't require any installation, which means that you can convert any files, including flv to mkv, on your computer or mobile device, completely online.