Kdenlive is an intuitive multi-track video editor, including most recent video technologies. It is completely free, as defined by the GNU foundation.
Kdenlive supports all of the formats supported by FFmpeg (such as QuickTime, AVI, WMV, MPEG, and Flash Video), and also supports 4:3 and 16:9 aspect ratios for both PAL, NTSC and various HD standards, including HDV and AVCHD. Video can also be exported to DV devices, or written to a DVD with chapters and a simple menu.
The development of Kdenlive has moved on from the K Desktop Environment 3 version (which wasn't originally made for MLT) to KDE Platform 4, with an almost complete rewrite.
Kdenlive packages are freely available for Linux, FreeBSD and Mac OS X under the terms of GNU General Public License version 2 or any later version.
Kdenlive 0.9.6 is the latest stable release with some bugfix and few minor improved features.
New features:
Added a Reverse clip option to Clip Jobs that creates a backwards clip
The list of audio / video bitrates can now be customized in custom rendering profiles
The solved issues in this version are:
Fix keyframes when cutting a clip / undoing a clip cut
Warn before overwriting .mlt stabilized file
Fix monitor confusion (clip monitor sometimes playing timeline,...)
Fix the Mono to Stereo effect UI
Fix proxy of playlist having wrong aspect ratio in some locales
Fix transition widget not correctly updated when resizing a transition
Fix DVD chapters broken when using an intro movie
Fix error message (No matching profile) poping up in render widget when everything was ok
Fix clip keyframes not showing on project load
Fix bug when moving guide (was not moving to the correct place)
Fix project corruption (wrong character) caused by some clip's metadata
Fix possible crash on track deletion
Fix timeline corruption when using spacer tool or overwrite edit mode
Fix possible crash when editing speed effect
Fix transition losing all its properties when moved
Fix crash when pressing del when editing animation in title widget
Fix crash when doing quick clip resize
Fix corruption when groups where overlapping
Fix corruption when adding a title clip where a transition already existed
Fix timeline preview corruption with some transitions.