You can save and manage your own trees at www.chesstree.net.
I don’t consider chesstree.net a properly made product yet, so it’s free for now, so:
- Pick trial account, if you just want to use chesstree.net normally. It won’t expire for now, and works just as well.
- Pick early supporter, if you also wish to tell me that Chesstree.net is worth developing into a commercial product.
New version is under development.