Thematic - Free Music for YouTube Videos & Creators • No Copyright
VideoProc - VideoProc is an easy video processing software to convert 4K UHD videos, DVDs and music with full GPU acceleration; resize, cut, crop, merge, adjust, compress; download videos/music/playlists, record screen in 3 ways.
cchound.com - A curated library of free music for content creators
HandBrake - HandBrake allows users to easily convert video files into a wide variety of different formats.
Free Music Archive - Interactive library of high-quality, legal audio downloads
OpenShot - OpenShot is a open source video editing program.