Open Source Software for Windows
Turtl
Turtl is a note taking application that uses high-end cryptography to protect your data. Whether you're worried about information leaks, competitive advantage, or blanket government surveillance, Turtl works hard to make sure only you, and those you choose, can see your data.
Zulip
Zulip is an open-source real-time chat with an email threading model. With Zulip, you can catch up on important conversations while ignoring irrelevant ones. Zulip provides modern apps for every major platform, powered by Electron and React Native. The software is 100% open source software, built by a vibrant community of hundreds of developers from all around the world.
HeidiSQL
HeidiSQL is a free and open-source GUI for MariaDB, MySQL, Microsoft SQL, PostgreSQL and SQLite databases. With HeidiSQL, you can spectate and edit data and structure of your database in an intuitive interface. The software allows you to connect to your database via SSH tunnel or with SSL, and connect to multiple servers simultaneously, while also being able to monitor and kill client process in real-time.
IPFS
The InterPlanetary File System or IPFS for short is a distributed hypermedia protocol designed to be the new permanent web. IPFS uses peer-to-peer to distribute the network across machines and the globe. IPFS combines decentralized technologies like Git, BitTorrent, Kademlia and SFS to build what they think could be the new internet, or a subsystem of it.
OpenSCAD
A free 3D CAD software developed for macOS, Linux and Windows. With OpenSCAD you can create solid 3D CAD objects through a script-only based modeller that uses its own description language. All objects in OpenSCAD can be viewed and inspected but not interactively selected or modified with gestures or mouse. Everything in OpenSCAD is based on scripts, a feature that some love. The software is openly developed and released under the GNU General Public License.
Cigati PST Converter
Cigati PST Converter Tool is one of the most reliable software that can convert your files into different file formats and email clients. This utility causes no loss of data throughout the process of conversion of users' files. It keeps the data integrity as the original folder. Users can also rename the PST files before the process of conversion. Its GUI helps both technical and non-technical users to proceed with their work without hindrance.
WinUI
WinUI makes it easy to build modern, seamless UIs that feel natural to use on every Windows device. It embodies Fluent Design to enable intuitive, accessible, and powerful experiences and the latest user interface patterns. WinUI offers a state-of-the-art UI framework for all Windows apps across both Win32 and UWP. It provides a way to gradually migrate existing apps written in C++ and MFC (Microsoft Foundation Class Library).
Focalboard
Focalboard is an open source, self-hosted alternative to Trello, Notion, and Asana. It helps define, organize, track and manage work across individuals and teams. Focalboard comes in two editions, a stand-alone desktop app for your todos and personal projects called Focalboard Personal Desktop and Focalboard Personal Server, a self-hosted server for your team to collaborate.
Rufus
With Rufus you can format and create bootable USB drives. Rufus is free and open source and can format FAT, FAT32, NTFS, exFAT, UDF, ReFS that works across USB flash drives, keys, and memmory sticks.