How to Efficiently Convert Flash Video FLV to MKV?

Quick Navigation

How to Efficiently Convert FLV Videos to MKV?

1. Import All FLV Videos

2. Select MKV Profile

Optional. Customize Video Parameters

3. Batch Convert FLV to MKV

Presumably most people are quite familiar with the video filetype with .flv extension. As a Flash video format, in the past two decade, it can be said to have been in the limelight for a while and even once used as a de-facto standard for many web-based websites. However, since Adobe has officially ended support for Flash on December 31, 2020, the use of FLV format is doomed to decline.

Instead, Matroska is a free and open container format that can encapsulate an unlimited number of video, audio and subtitle tracks in one .mkv file, and is commonly accepted by a large range of media players, editors, game consoles and other devices. Therefore, many people are increasingly inclined to convert FLV to MKV. No worries, that's the main reason why I've compiled this guide below.

How to Efficiently Convert FLV Videos to MKV?

If you know little about video processing and have no idea how to convert Flash videos to MKV format, HD Video Converter Factory Pro would be the best assistant among all FLV to MKV converters screened out from the Internet. The highlights boil down to the following adjective words: straightforward, flexible, user-friendly, easy-to-use, self-explanatory, efficient and multi-purpose.

If you think I'm bragging, then you might free downloadfree download this FLV to MKV converter and follow the steps to batch convert Flash video files to Matroska.

HD Video Converter Factory Pro provides a one-stop solution to FLV to MKV conversion as well as video editing, compression, downloading, recording, etc. The batch mode and hardware acceleration will save you from a long wait and repetitive & redundant work. Most importantly, it's a totally foolproof application with no threshold. Get the handy FLV to MKV converter now!

Step 1 - Import All FLV Videos

Install and launchInstall and launch HD Video Converter Factory Pro, to convert FLV to MKV, simply open its major module "Converter". Next, click "Add Files" or "Add Video Folder" button to add all the FLV videos you want to convert into the program. Alternatively, just drag and drop the Flash videos to the interface. After loaded, you're allowed to play the FLV files in the built-in player by clicking on each preview button.

Tips: In addition to "Converter", there are four additional modules ("Downloader", "Recorder", "GIF Maker" and "Toolbox") available that provide you with different practical functions. If interested, go ahead and start your personal experience.

Step 2 - Select MKV as Output Format

Click on the right-hand format profile to open the full list of 500+ optimized presets. To convert FLV to MKV, navigate to "Video" category and select "MKV" profile right there.

Note: All the 500+ presets are well-organized and grouped by major video/audio formats and frequently-used devices. In other words, you can also convert FLV to MP4, MP3, AVI, MOV and other device-compatible formats, etc. without further settings required.

Optional - Customize Video Parameters

You're also allowed to modify video parameters if you have additional requirement. Press "Parameter settings" button underneath the format profile to open a new window, where offers multiple options to customize video and audio settings separately, such as change video aspect ratio and video frame rate, adjust bit rate, resolution and alter audio settings. Then click OK to save the changes.

In addition, this application is also furnished with some basic editing features to help trim, split, merge, crop, rotate, flip or watermark video, even add subtitles and effects to video.

Step 3 - Convert FLV to MKV in Batches

Once everything is ready, click the inverted triangle icon on the bottom to designate an output folder to save the converted files. At last, press the big "Run" button to batch convert FLV to MKV. With GPU acceleration enabled, it will enhance the real-time conversion speed and performance.

Also Read: Convert MP4 to MKV | Convert AVI to MKV | Convert WMV to MKV | YouTube to MKV