Libreoffice is a free office suite. It uses the Open Document Format,an international standard.
https://www.libreoffice.org/

DownThemAll! is an advanced download manager built as a Firefox browser plugin. Speed up your downloads without using proprietary programs,right from your browser.
https://addons.mozilla.org/en-US/firefox/addon/downthemall/

Miro Video Converter is a simple free video converter for videos to play on your Android,iPhone or iPad device,or in a free format like Ogg Theora (.ogv)
http://www.mirovideoconverter.com/

WinCDEmu is a simple tool to Mount ISOs on a virtual drive. Use downloaded ISOs without burning to a blank disk.
http://wincdemu.sysprogs.org/

Calibre is a free E-Book management and reading software. It supports the free EPUB format
https://calibre-ebook.com/

The ThinkPenguin Wireless USB adapter for GNU/Linux is a small WiFi adapter that works with any GNU/Linux distribution and runs free software.
https://www.thinkpenguin.com/gnu-linux/penguin-wireless-n-usb-adapter-gnu-linux-tpe-n150usb

Pidgin is a free Chat Client for connecting to all you instant messaging platforms.
https://pidgin.im/

Blender is a free software 3D graphics and animation program.
https://www.blender.org/

Coreboot is a free BIOS replacement installable to flash.
https://www.coreboot.org/

F-Droid is a free software Android Appstore. Not only are all the apps in the store free software,they are also free of charge and free of advertising
https://f-droid.org/

Krita is a free software painting and 2D image editing program.
https://krita.org/

Value your Freedom or you will lose it,teaches history. "Don't bother us with politics," respond those who don't want to learn.
- Richard Mathew Stallman

MPV (stylised mpv) is a free software command line media player
https://mpv.io/

Software is like sex: it's better when it's free.
- Linus Torvalds

Evince is a free software PDF document viewer. It also opens other free document formats.
https://wiki.gnome.org/Apps/Evince

KeePassX is a free software password manager. It saves usernames and passwords, has a password generator, and is always encrypted.
https://www.keepassx.org/

Notepad++ is a free software Notepad replacement and Source code editor.
https://notepad-plus-plus.org/

Free software' is a matter of liberty, not price. To understand the concept, you should think of 'free' as in 'free speech,' not as in 'free beer'.
- Richard Matthew Stallman

Audacity is a free software Audio Editor and Recorder for all popular operating systems.
www.audacityteam.org

Parabola is a fully free lightweight operating system.
https://www.parabola.nu/

Arguing that you don't care about the right to privacy because you have nothing to hide is no different than saying you don't care about free speech because you have nothing to say. Nobody needs to justify why they 'need' a right. The burden of justification falls on the one seeking to infringe upon the right. You can't give away the rights of others because they're not useful to you. More simply, the majority cannot vote away the natural rights of the minority.
- Edward Joseph Snowden