Whereby (formerly appear.in) - Collaborate from anywhere - video meetings with no downloads
Flixier - Flixier Pro is an online video editor that speeds up your workflow with 1 minute rendering on any device, streamlined communication and collaboration features and plenty of cloud storage.
Chaton - 1:1 video chat P2P open source
MotionDen - Free online animated video maker
Open Source Stash - The best open-source alternatives for you next maker project
Video Puppet - Edit video as easily as editing text!