This tool converts MKV to F4V completely free and without any functional limitations. Since it is based on the browser API, the processing speed is the fastest because all files are processed locally on your device and are not uploaded to our server.
Batch Convert MKV to F4V Online
With this convertor, you can easily convert multiple MKV files to F4V format directly in your browser — completely free. You can also customize the video resolution (width and height) during the conversion.
To access advanced settings, click the Options button in the top right corner. There, you can set the output size for your F4V files.
Additional Settings:
Video Size: Set the width and height for the output F4V file.
Encoding Speed:Controls how fast the video is encoded. Faster speeds may result in larger file sizes.
Video Bitrate:Set between 1–10,000 Kbps to control the video quality and file size.
Frame Rate:Defines the video’s FPS (frames per second). Higher frame rates produce larger files.
Audio Bitrate:Recommended range is 16–320 Kbps.
Cut Video: Trim the video using a start and end time in HH:MM:SS format.
For example, setting 00:00:05 to 00:00:08 will cut a 3-second clip from the video or animation.
Before converting, you can choose a folder on your device where the converted F4V files will be saved. Each MKV file will be automatically saved to your selected folder after it's successfully converted — no manual downloads needed.
Save All: Once all MKV files are converted, click
Save All to instantly save all F4V files to your selected folder.
About MKV files
MKV (Matroska Video) is a flexible, open-source multimedia container that stores video, audio, subtitles, and metadata in a single file. It supports advanced features like multiple audio tracks, chapters, and modern video codecs such as H.265/HEVC. Widely used for HD movies, TV shows, and streaming, MKV is compatible with players like VLC. We can also convert MKV files to animated formats such as GIF, WebP, and APNG.
About F4V files
F4V is a video format based on the H.264/MPEG-4 AVC standard, developed by Adobe for Flash-based video streaming. It is commonly used for online videos, especially those embedded in websites via Flash Player. F4V supports high-quality video and audio compression, making it efficient for streaming. However, with the decline of Flash, F4V has become less popular, and modern browsers now favor MP4 or HTML5 formats instead. It remains compatible with some media players and Flash-based applications.
