Free Open-Source Software (FOSS)

A random collection of software that's free and open-source (meaning that it's available for anyone to change and improve).
Find more information for some of these on https://www.techradar.com/best/best-open-source-software

TypeNameURLAvailabilityComments
Email clientThunderbirdhttps://www.thunderbird.net/en-US/ MacOS, Windows, Linux
Password Manager/SafeKeePasshttps://keepass.infoMacOS, Windows, Linux, iPhone, Android, iPad, Chromebook, maybe others
Office Suite (cf Microsoft Office)LibreOfficehttps://www.libreoffice.org/ MacOS, Windows, Linux
Picture/Photo EditingGIMPhttps://www.gimp.org/MacOS, Windows, Linux
File Transfer (FTP)FileZillahttps://filezilla-project.org/MacOS, Windows, Linux
Operating System (cf Windows, MacOS)Linuxhttps://www.techradar.com/best/best-linux-distrosany PC including old ones you have no other use for
(Steve suggests Linux Mint https://linuxmint.com but many like Ubuntu https://ubuntu.com)
Media PlayerVLChttps://www.videolan.org/vlc/MacOS, Windows, Linux, Android, more?

Free, but Not Open Source

Just because it's not open-source doesn't mean that it's not bad just 'cause it's free.

TypeNameURLAvailabilityComments
Video EditingDaVinci Resolvehttps://www.blackmagicdesign.com/products/davinciresolve/studio MacOS, Windows, LinuxProfessional quality video editing. Note, there is a learning curve, but Note: there are MANY YouTube videos to help! See the page on this wiki