Software Tool : Avidemux  
License : Free/Open Source
Site : Avidemux

Free Video Editing Software for linux, windows and mac. Avidemux helps in simply splitting your video, filtering and encoding (in between these lots of feature can be found in this video editor). Cut your video portions, add colors, add text subtitle, convert videos from one format to another easily. Since it is open source, many bug fixes arrives time to time and many features are being added time to time, that is why it makes this video editor so useful.

(link sends you to download information page of author site)