FREE VIDEO EDITORS
AVID Media Composer, First. After a long wait AVID has finally released their free version of media composer. https://my.avid.com/mcfirst/Home
Blackmagic Design has made "DaVinci Resolve 12 Lite" FREE. Resolve is a powerful & advanced professional grade color correction tool & in this latest upgrade it also gives you the ability to Edit footage : https://www.blackmagicdesign.com/fi/products/davinciresolve
Blackmagic Design has also made "Fusion 7" FREE. Fusion 7 is an advanced professional compositing software used on many major Feature Films: https://www.blackmagicdesign.com/fi/products/fusion
HitFilm is an impressive & powerful Video Editor & it is also an amazing Compositor loaded with many internal effects. 'HitFilm 3 Express' is not as robust as the 'Pro' version, but its an amazing tool & available FREE at HitFilm.com : https://hitfilm.com/express
Blender 3D is an amazing Open Source software, Capable of 3D modeling & animation, Compositing, a Game Engine. Blender also has a "VSE: Video Sequence Editor" and is available for FREE Download here: https://www.blender.org/download
Lightworks is a professional grade NLE which is available for FREE download. Their older version was an Online, Web based platform which only processed PAL 25fps footage, but the newest upgrade is a downloadable program which handles all types of footage and has many advanced features. This FREE version will only export video at HD 720p, however it's a great platform for web & TV based distro. You can find it at: https://www.lwks.com
Shotcut is an open source video editor. It handles a wide variety of audio, video and image formats, and allows you to edit those formats directly, often with frame-accurate seeking. You can mix resolutions and frame rates, deinterlace, encode/transcode to other formats, capture, stream, apply video (blur, colour grading, colour inversion, crop, rotate, mirror, etc) and audio filters (balance, copy or swap channels, downmix, normalize, etc), mix audios across all tracks, append, insert, overwrite, delete, and so on. (There are too many features to list here. You can see the full list on their site.)
LiVES, formerly the "Linux Video Editing System" but now "LiVES Is a Video Editing System" (since it now supports other operating systems besides Linux), is both a non-linear video editor as well as a VJ tool for real time video performance. It's designed to let you edit videos without bothering about formats, frame sizes or video rates. You can mix and switch clips from the keyboard, trim and edit your video clips, put them together using its multitrack timeline, record a live performance, etc. You can also script the application or control it remotely. It supports a wide variety of formats (both input and for encoding), features frame accurate cutting and pasting, deinterlacing, subtitle removal, resampling of video, load audio tracks off CDs, fade-in and fade-out for audio, provides effects and transitions, etc (too many features to list here). This program works on Linux and the various BSD systems including Darwin and Mac OS X. It is an open source program.
The Avidemux video editor allows you to perform simple cutting, filtering and encoding operations on AVI files, DVD-compatible MPEG files, MP4 files, H.263(+) video streams, simple QuickTime files, and ASF files. It uses built-in video codecs to read and write video files and is able to use a variety of audio codecs to encode your audio data. The software is released under the GNU General Public License (that is, it's free and open source).
MPEG Streamclip can convert, play and edit a variety of movie/video formats, such as MPEG, VOB, PS, M2P, MOD, VRO, DAT, MOV, DV, AVI, MP4, TS, M2T, MMV, REC, VID, AVR, M2V, M1V, MPV, AIFF, M1A, MP2, MPA, AC3, etc. Editing facilities include cut, copy, paste, trim, the ability to convert to muxed or demuxed files, etc. Because of its support for VOB files, it looks like you can use this tool to save/copy a clip from a DVD as well.
Virtualdub is a well-known video capture, processing and editing software that allows you to capture video from an input source and perform simple video editing. It is not a full-blown video editor as such, but for simple cut and trim operations, it works well. It is also able to perform a variety of pre and post processing operations on your video such as adjusting the frame rate, remove audio tracks without touching the video, pass your video through processing filters like blur, sharpen, emboss, smoothen, flip, resize, rotate, adjust the brightness and contrast, deinterlace, etc. It is geared towards processing AVI files, although it can also read, though not write, MPEG-1 files. If you install video codecs onto your system, VirtualDub will be able to use it. This is a Windows program.
HyperEngine-AV is a non-linear video editor that allows you to capture, arrange, edit and process video, audio and text. You can work with an unlimited number of video, audio and text tracks. Transitions are created automatically when you drag video clips on top of each other, and they can be edited. This is a open source program (GNU General Public License) that works under Mac OS X.
The ZS4 Video Editor (or Zwei-Stein Video Editor) is a video editing and compositing software that comes with a huge number of built-in video effects. It allows an unlimited number of video, audio and picture tracks, an unlimited number of video and audio effects for every track, cropping, panning, zooming, looping of both audio and video signals simultaneously with adjustable cross-fade on loop boundaries, up to 16 audio channels per track, distortion effects, colour adjusters, etc. It handles a variety of formats, depending on the operating system used, including IYUV/I420, YV12 and YUV9 AVI files, MJPEG AVI, MPNG AVI, other AVI files, WAV, JPG, PNG, BMP, etc. This program is no longer being maintained.
Jahshaka is a video editor that allows you to edit your videos, create effects, animate, paint and design on moving video, create music, and work with a variety of file formats. It is an open source program. Also available are royalty free media files including textures, 3D models, images and video clips.