Free Software
Socket.io
Socket.IO is a free and open-source JavaScript library that can be used for building realtime web applications. The library consists of two parts, a server-side library for Node.js and a client-side library that runs in the browser.
Whiteboard Team
Whiteboard Team is a real-time, web-based whiteboard application. With you can communicate visually with friends, family and co-workers by drawing and explaining your ideas on a whiteboard. Whiteboard Team provides an infinite zoomable canvas that includes basic shapes and sticky notes that can be used to further visualize and bring forth your ideas before your peers.
NosDB
NosDB is an open-source NoSQL Database that is 100% native to .NET. The database is released under the Apache 2.0 License and can be used in commercial and non-commercial projects alike. NosDB helps you accelerate your.NET development by providing a flexible JSON schema. Developers use NosDB to build projects tailored around Personalization, Content Management, Catalogs, Data Logs, Real-Time Big Data, Internet of Things, Scalable Web Apps, Scalable Web Services and more
Vulkan
Vulkan is a new generation graphics and compute API that provides high-efficiency, cross-platform access to modern GPUs used in a wide variety of devices from PCs and consoles to mobile phones and embedded platforms.
Battle.net
Battle.net is a gaming platform and social networking service developed by Blizzard Entertainment. With Battle.net you can launch and play games like Warcraft, Diablo, StarCraft, and Overwatch series with your friends and family.
QuiteRSS
QuiteRSS is a open-source cross-platform RSS and Atom news feeds reader application. With QuiteRSS you can store and read the latest news through an embeded browser using webkit core. Allowing you to filter your news by new, unread, starred, deleted. With the help of QuiteRSS' feed import wizard you can easiliy search feed URLs and import the latest news from your favorite source quickly, without the hassle of manual work.
Memento Time Travel
With Memento Time Travel you can search and view old web pages that existed in the past. Similar to the Wayback Machine, the Memento Time Travel applicaiton archives the best websites throughout time. Allowing users to view old content that is no longer visible or hosted on the web.