Shotcut is a free, open-source and cross-platform video editor.
The program uses the popular FFmpeg to import source files, which means there's no need to worry about format support: it'll open just about every video variant that's ever existed.
There's also support for capturing resolutions up to 4k from SDI, HDMI, webcam, JACK & Pulse audio, IP stream, X11 screen and Windows DirectShow devices.
A straightforward interface ensures you'll be up-to-speed immediately, and offers plenty of ways to customise your working environment.
There are lots of video filters, from simple colour/ brightness/ contrast tweaks, fade ins and outs, transitions and so on, to special effects, video compositing and blending modes, chroma key, HTML overlay and more.
Shotcut offers almost as many audio effects and filters, with fades, balance, bass and treble, band pass, delay, downmix, normalize, pan, reverb and more.
All this is editable on a highly configurable multitrack timeline, then exported in whatever video format you need.
17.12.03 adds (see changelog for more):
- Added icon, progress bar, and time remaining/taken to Jobs panel.
- Increased maximum resolution to 8192x8192.
- Indicate if variable frame rate is detected in Properties.
- Added Convert to Edit-friendly… dialog when variable frame rate or non-seekable file opened.
- Added Convert to Edit-friendly… to Properties menu for video and audio files.
- Adding, removing, and adjusting Fade In/Out filters now updates fade controls on the Timeline.
- Major speed improvements for Timeline rendering, especially when changing zoom level.
- Stop showing waveforms on muted tracks.
- Fixed audio crackling on some systems.
- Fixed accuracy of reading and writing time values, particularly for non-integer frame rates.