Open Broadcaster Software - Wikipedia
Streamlabs OBS/OBS Studio – Open Broadcaster Software is a free and open-source cross-platform streaming and recording program built with Qt and maintained by the OBS Project. 
ShareX - Wikipedia
ShareX – ShareX is a free and open source program that lets you capture or record any area of your screen and share it with a single press of a key. It also allows uploading images, text or other types of files to many supported destinations you can choose from.
Bitwarden Password Manager - Apps on Google Play
Bitwarden – Bitwarden is a free and open-source password management service that stores sensitive information such as website credentials in an encrypted vault. The Bitwarden platform offers a variety of client applications including a web interface, desktop applications, browser extensions, mobile apps, and a CLI.
File:FileZilla logo.svg - Wikimedia Commons
FileZilla – FileZilla is a free software, cross-platform FTP application, consisting of FileZilla Client and FileZilla Server. Client binaries are available for Windows, Linux, and macOS, server binaries are available for Windows only. 
Chocolatey Software | PuTTYtray 0.67.029
PuTTYtray – PuTTY Tray is an improved version of PuTTY (Win32). It features some cosmetic changes and a number of addons to make it more useful and much more fun to use. Transparent Windows ftw!
Zenmap: A GUI Frontend For Nmap Network Scanning Tool | Unixmen
Zenmap – Zenmap is the official Nmap Security Scanner GUI. It is a multi-platform, free and open-source application that aims to make Nmap easy for beginners to use while providing advanced features for experienced Nmap users.
BlueStacks – Fastest Android Emulator for PC & Mac |100% Safe and FREE
Bluestacks – The BlueStacks App Player is designed to enable Android applications to run on PCs running Microsoft Windows and Apple’s macOS. 
Visual Studio Code - Wikipedia
Visual Studio Code – Visual Studio Code is a freeware source-code editor made by Microsoft for Windows, Linux and macOS. Features include support for debugging, syntax highlighting, intelligent code completion, snippets, code refactoring, and embedded Git. 
Telegram Web
Telegram – Telegram is a freeware, cross-platform, cloud-based instant messaging software and application service. The service also provides end-to-end encrypted video calling, VoIP, file sharing and several other features.
Wireshark · Go Deep.
Wireshark – Wireshark is a free and open-source packet analyzer. It is used for network troubleshooting, analysis, software and communications protocol development, and education.