Select the FLV file you want to convert
Click convert and watch the progress - the file never leaves your device
Preview the result and download your MKV file instantly!
Converting FLV files to MKV has never been this easy, free, and secure!
Fublix's FLV to MKV converter is 100% free and has no limits! Use it as many times as you want without paying anything.
No files are uploaded or sent to any server. The entire conversion takes place locally in your browser. 100% safe and secure.
No limit on the number of files you can convert. Convert as many files as you need, whenever you need.
FLV was the format of Flash-era web video. With Flash long gone, FLV files saved from the old web no longer play anywhere without conversion.
MKV is the archivist's container of choice - open, flexible, and able to hold virtually any codec, subtitle, and audio track.
Our converter reads the FLV file and produces a clean MKV file you can use anywhere. The first conversion loads our WebAssembly conversion engine (about 30 MB, cached afterwards) - then everything runs locally on your device.
Most online converters upload your FLV file to a server for processing. Fublix doesn't - the conversion runs entirely inside your browser, and your file never leaves your device.
Free, unlimited, no watermark, and no registration required.
