The really bright devs at Nulab in Japan have just released their real-time collaborative diagramming tool, Cacoo. And it is amazing!

While we have seen many such online diagramming tools from Creatly, Gliffy, and others, for an early build beta release, Cacoo is very impressive indeed. Impressive both in terms of scope and execution: The app is snappy, feeling more like a desktop application than one stuck in the limited confines of browser space. Its UI is well thought out and implemented. Real-time collaboration with your project team or other stakeholders is a breeze, and (whew) it allows you to embed the current version in your blog or groupware site (below) using copy/paste. The changes made to the original digram are of course automatically shown in the embedded diagram.

As an early beta, expect some rough edges. But in our quick testing we have not seen any show stopping defects. In addition, your diagram changes are saved in a version history. So you can roll-back to earlier versions if you choose. 

We will of course keep an eye on Nulab and Cacoo for you. But why not give it a try?