FLV to MKV
Change FLV to MKV and keep the quality you need. Free for up to 10 files a day, no sign-up.
FLV
Your files
Drop your .flv files here
or
You can add several files and convert them together.
How to convert FLV to MKV
- Drop your FLV file into the box above, or add it from a link.
- MKV is already selected. Use the settings button next to it to change size, quality or other options.
- Select Convert, then download your MKV file.
To do this from your own code, call the FileForge API with "output_format": "mkv".
About the formats
.flv
FLV is the Flash Video format from the days of Flash players. Flash is gone, so FLV files now need converting to play in browsers and on phones.
.mkv
MKV (Matroska) is a flexible video container that can hold many audio and subtitle tracks. It's popular for films and recordings, but phones, browsers and editing apps often won't play it.