Graphonline Open Source
Graphonline is an open source project. You can find source code on github: https://github.com/UnickSoft/graphonline. We have plans for a big amout of features, but our small team is implementing them very slowly.
You can help us
Also you can help us to fill our wiki: https://graphonline.ru/en/wiki/. Or improve our design. Or test new functionality. Anyway, if you are able to spend 1 hour in a week for graphonline, please write us.