Useful, free software

Looking for the right tools is sometimes tricky.
Here’s a list of free software I found useful:

PurposeToolDetails
Screen capture with AudioShareXEasy to use, with excellent video and audio quality.
Continues recording even when screen is in power savings mode.
Works well for long recordings (>2 hours).
Note: after recording is done, it can take a while for the final video to be ready for viewing.
Cloud storage accessrcloneEnables seamlessly accessing storage from multiple vendors, covering pretty much every big storage vendor (Google Drive, OneDrive, S3, BackBlaze, Alibaba to name a few).
Enables two or more simultaneous mounts of different storages (and specifically, Google Drives).
Download YouTube videosyoutube-dlSimple command line download of videos, playlists and channels from YouTube