Clip Bucket

Free and open source. Currently, the official version of v1.7 is available for download. ClipBucket v1.8 is under development. It is based on FFMPEG and is not bad. The most eye-catching thing is the sphere tag to remove the effect (flash tag cloud, I saw someone using it in wordpress before) Similar plug-ins) also have a light-off effect when watching videos, which is a highlight.