I have found in several neo4j tutorials that they use the "arrow tool" (http://www.apcjones.com/arrows/) to rapidly sketch graph-database schemes.
That tool is really convenient, easy to use, etc. However it only allows you to have a working scheme –you can download your scheme in various formats but not upload it. If you I want to sketch a new scheme you must forget about editing the previous one anymore (or use different browser/computer)
So I was wondering whether there is an alternative to it. To reproduce what that tool does, essentially all that is needed is drawing/displaying nodes and relations showing for both of them their properties. See an example below: