Open Source (Free) Downloads
- 7-Zip
- Free Software Foundation
- Free Software Foundation Resources
- LibreOffice - Free Office Suite (+ Visio)
- OpenOffice - The Free and Open Productivity Suite
- Scilab (similar to Matlab, but free)
- Scilab File Exchange
- Scilab Toolbox MKL
- Scribus - Open Source Desktop Publishing
- LibreCAD (free Open Source CAD application)
- LibreCAD download
- LibreCAD download GitHub latest release
- LibreCAD download GitHub releases
- LibreCAD Source code
- LibreCAD Build from source
- LibreCAD Wiki for tutorials and how-to
Applications and Tools
Application Development (Windows Visual Studio)
Application Development Tools (Free)
Android
- PRISM Break - Android information
- Signal Android APK (direct download)
- Tor Android APK (direct download)
- How to compile Android from source?
- Downloading the Android Source
- Set up for Android Development
- Android Build System
- Build Android
- Develop an Android Device
- Flashing Android Devices
- Android Flash Tool
- Building Android Kernels
- How to build your own custom Android ROM
Linux
- 10 reasons to use Cinnamon as your Linux desktop environment
- Debian (Linux)
- Debian Installation Howto
- Debian ISO DVD amd64 download
- Debian on CDs/DVDs
- Debian Verifying authenticity of Debian CDs
- Free GNU/Linux distributions
- GNU/Linux - Platforms - PRISM Break
- Linux Mint
- Linux Mint 19.2 "Tina" - Cinnamon (64-bit)
- Linux Mint All Releases
- Linux Mint Cinnamon looks like Windows 7/8
- Linux Mint Latest Download
- Linux Mint Verify ISO
- openSUSE (Linux)
- openSUSE Leap
- OpenZFS on Linux
- Security in-a-Box guide for Linux
- Ubuntu (Linux)
- Ubuntu Desktop Download
- Ubuntu Spyware: What to Do?
Email Client
- Security in-a-Box guide for Windows
- Thunderbird email application
- Thunderbird releases
- Thunderbird installation guide
- GnuPG (Gpg4win) for file and email encryption
- Enigmail interface for OpenPGP email security
- Enigmail for Thunderbird
- Enigmail (older versions)