FLV to MKV
Convert FLV files to MKV online for free. Fast, secure, and no installation required. Best FLV to MKV tool.
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Fast & Free
Convert your files in seconds. No limitations, no watermarks.
Secure
Files never leave your device. All processing happens in your browser.
High Quality
Best in class algorithms for MKV conversion.
What is FLV?
Flash Video
FLV was the standard video format for web streaming via Adobe Flash Player. Although Flash is now obsolete, many legacy video files exist in FLV format and often need to be modernized to MP4.
- Legacy web video
- Small file size
- Requires conversion for modern use
What is MKV?
Matroska Video
MKV is an open-standard container capable of holding an unlimited number of video, audio, picture, or subtitle tracks in one file. It is highly popular for storing high-definition movies and TV shows because it supports advanced features like chapter points and multiple audio languages.
- Supports multiple audio/subtitle tracks
- Open source
- High definition support