PDFCraft is a free, privacy-focused PDF toolkit
Simple peer-to-peer with WebRTC
Searching metada for your Video Files and renaming them properly
Full featured editor for reading and manipulating MARC Records
Callback-based ISO media file parser
Powerful engine for creating blogs, all you need is PHP to work.
html5media is a DITA-OT plugin and authoring UI for media insertion
1st 3D game engine built in C# for .NET, Visual3D Engine's predecessor