Free open-source non-linear video editor
Slick, declarative command line video editing & API
Shotcut is a free, open source, cross-platform video editor.
Non-linear video editor targeted for home video editing.
Graphic Live Mixer
A Java gui for MP4Box
DVB Video editor
An AviSynth script editor with side by side preview and encoding GUI
Audio Video media editor for complex composition
Avidemux builds for Microsoft Windows
music video creator for studio recording sessions