Back to all tools
Convert MKV to FLV
Convert MKV to FLV format — 100% browser-based, no upload required.
2 cores · low tier
Drop a file here or click to select
Format will be auto-detected
About these formats
Source
MKV
Matroska VideoOpen-source container that can hold many video, audio, and subtitle tracks. Popular for high-quality video archiving and media libraries.
Best for
Video archivingMulti-track contentSubtitlesMedia libraries
Advantages
- + Open source
- + Any codec
- + Multiple tracks
- + Chapters & subtitles
Limitations
- − No native browser support
- − Not streamable
- − Limited mobile support
Target
FLV
Flash VideoLegacy Adobe Flash video format. Once dominant for web video streaming, now largely obsolete since Flash's discontinuation.
Best for
Legacy contentOlder streaming archives
Advantages
- + Small file size
- + Was universally supported via Flash
Limitations
- − Flash is discontinued
- − Poor quality
- − No modern browser support
- − Obsolete