Video → Video
MKVtoFLV
Drop your files here
Video, audio, images and documents: MP4, MP3, HEIC, DOCX, PDF and 33 more formats. Several files or a link at once.
Why convert
MKV — a container for films and series that holds several audio tracks and subtitles. FLV — a format from the Flash era, used for video from old sites and streams. Use it when a program or device asks for FLV specifically.
What changes in the file
The video is re-encoded; at High quality the difference is not visible. One video and one audio track are carried over; subtitles and chapters are not. FLV uses an old codec, so at the same quality the file is larger than MP4.
Which settings to pick
If the file has to fit a limit, set File size: the quality is chosen for you. For messengers choose Smaller file and 720p; for editing keep High and the original height.