Open Source Software for Windows
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.
DbGate
DbGate is a (no)SQL database client that supports MySQL, PostgreSQL, SQL Server and MongoDB. The software is free to use for any purpose and the source code is available under the MIT license. DbGate works on macOS, Linux, Windows and in your modern web browser.
Aptana Studio
With Aptana Studio you can build web applications quickly and easily using an industry leading web application IDE. Aptana utilize the power of the IDE Eclipes and levrages it into a powerful web development engine. Aptana Studio allows you to write HTML, CSS, JavaScript, PHP, and Ruby, with support for the latest HTML5 specifications. Includes information about the level of support for each element in the major web browsers.
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.
Beekeeper Studio
Beekeeper Studio is a well-designed and easy to use SQL client for MySQL, PostgreSQL, SQLite, SQL Server, and a variety of other relational database management systems. The software allows you to connect to databases normally or encrypted with SSL, or tunnel through SSH to ensure maximum security while still providing choices. With Beekeeper Studio, you can manage multiple tabs and multitask across operations, while providing auto-complete suggestions for tables and queries. Commonly used queries can be saved and orginized into workspaces, that can be used across connections and projects. Beekeeper Studio is both free and open source and released under the MIT License.
Sandboxie
Sandboxie is a free open-source sandboxing program for Windows. Sandboxie allows you to create isolated operating environment in which applications can be run and installed without permanently modifying the local system. This virtual environment allows for controlled testing of untrusted programs and web surfing.
Internxt Drive
Internxt Drive is a secure file storage solution with a focus on user-friendliness and security. Internxt Drive allows you to store files, photos, videos in the cloud and sync or backup local files and make them available for sharing online. With Internxt Drive military-grade encryption you can rest assured that your files are in safe and only accessible by you.
GNUnet
Help build the internet of tomorrow with GNUnet. It's a software framework for fully decentralized, peer-to-peer networking that offers link encryption, peer discovery, resource allocation, and secure communication. The goal of the project is to replace the old insecure Internet protocol stack. GNUnet includes a fully decentralized DNS (Domain Name System) that utilize a directed graph instead of the hierarchical system implemented today. It also has it's own identity system re:claimID, a decentralized Identity Platform that is baked into GNUnet.
pyLoad
pyLoad is a free and open-source lightweight download manager written in Python. pyLoad was designed and developed to run on NAS, next-gen routers and headless home servers or whatever device that is able to connect to internet and supporting the Python programming language. pyLoad is extremely lightweight, easily extensible and fully manageable via the web.
Wallabag
With Wallabag you can save web articles and links and read them later. The application is developed and released as open source software and is avalible on your smart phone, tablet and desktop. Wallabag can be self-hosted for free, or used as a service for a monthly subscription.