What is TogetherJS?

We’d like to introduce TogetherJS, a real-time collaboration tool out of Mozilla Labs.

TogetherJS is a service you add to an existing website to add real-time collaboration features. Using the tool two or more visitors on a website or web application can see each other’s mouse/cursor position, clicks, track each other’s browsing, edit forms together, watch videos together, and chat via audio and WebRTC.

Serious JS wizardy here, it only takes about 50 lines of code to make a very simple shared drawing app. That said, I’m betting the server overhead is considerable.

Mozilla Labs has cooked up interesting stuff before, but I think everyone is waiting on PDF.js