Codassium : A better way to conduct remote interviews
WebRTC based video chat + code editor = Awesome interviews
Mockingbird : Mockingbird is an online tool that makes it easy for you to create, link together, preview, and share mockups of your website or application.
RegPack : RegPack is a packer intended for use on minified Javascript code.
It is mostly suited to small size constraints (1kb, up to 4kb).
Penpot : Penpot is the first open-source design tool for design and code collaboration. Designers can create stunning designs, interactive prototypes, design s...
MindMeister : MindMeister is an online mind mapping tool that lets you capture, develop and share ideas visually.
Etherpad is an Open Source online editor providing collaborative editing in really real-time powered by Node.js