There are many video editing softwares available in the internet. Some of them are free, some are free as well as having paid versions and some are only in paid category. Please note that some of the free video editing apps will put their watermarks on the videos. Now we will go through some popular and free apps for this purpose.
1. VSDC desktop video editing software - It is available in free as well as paid version and works in Windows environment. The free version has many features including a mask tool, green screen video effects etc.
2. Movie Maker 10 - This is a basic video editing software for Windows and has many video and picture editing tools including adding captions and customisable fonts. It has animation facility to add music and titles etc.
3. Shotcut - It is an open source free video editor for Windows, Mac, and Linux. It is very versatile and supports so many formats. It has multi-format timeline for mixing and matching and also has capabilities like bass, treble, filters, compressors etc.
4. VideoPad - It has easy to use interface and it is an ideal software for beginners in this field. It is free of cost and works in Windows environment. It has multiple display facilities and audio overlay is quite smooth. The videos after editing can be posted directly to the platforms like Facebook or Youtube.
5. Quik - This free app is for Android and iOS and has got many features like professional time-lapse sequence creation, aligning videos to music, intelligent editing assistant etc.
6. Magisto - It is for Android as well as iOS. It is free as well as has a paid premium version. It is said to be the best AI-powered video editor. It is easy to use and has functions like facial recognition, filters, effects, auto cropping etc.
7. KineMaster - It is loaded with many features and has both the versions free as well as paid. It is easy to use app and has many functions like blending, voiceovers, speed control, video reverse, chroma key, frame-by-frame adjustment etc. It works in Android and iOS.
8. OpenShot - It is very good software for the beginners and is easy to use. It is very good for some jobs like clip resizing, scaling, trimming, snapping, rotation, credit scrolling, frame stepping, time mapping, audio editing, and real-time preview. It works in Windows, Mac, and Linux environment.
Actually there and many more softwares for this purpose and people use one or more of them as per their basic requirement. For example the You tubers generally use Adobe Premiere Pro, Final Cut Pro X, Adobe After Effects, Lightworks, Shotcut etc. For the beginners Movavi Video Editor Plus, Pinnacle Studio, Lumen5, Blender etc are preferred. Then there are some free apps which do not show the water mark on screen like VSDC, OpenShot, Shotcut, DaVinci Resolve etc. So one has to select as per one's choice based on all these factors.
Knowledge is power.