Convert Video to mp4,WebM etc in Browser. So security is good.
GUI frontend of ffmpeg.
ffmpeg is open source video converter.
Compress performance is good,because you can select "veryslow option of x264" and H.265.
You can cut video file of any video format which is supported by ffmpeg.
It is possible to convert lossless by copy.
( It is necessary that original video codec is supported by output file extention. )
### requirement ###
Your browser support PNaCl (Portable Native Client).
Vivaldi and Opera don't support PNaCl.
Also Part of Chromium don't support PNaCl.
In this case, you can use JavaScript version.
http://neo.idletime.tokyo/enu/idleencoder_js/
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