Most interesting free and opensource software of the month:
RememBear is a multiplatform password manager (Windows, Mac) and available also for mobile (Android, iOS), browser extensions are available too.
EZBlocker allows to block ads on Spotify for Windows.
Requires .NET Framework 4.5 installed and Windows 7/8/10.
CareUEyes allows to relax your eyes when you are at PC. The Windows software has 3 main functions: Blue light filter, Control brightness, Break reminder.