No such thing exists as far as I'm aware. It would be nice to have, and so would an editor. The closest thing to it is probably whatever Bash code supports the "remove bloat" feature.
I recall seeing some code in OBSE's source that parsed ESS files for something -- You could try looking for that.
All I can find in the OBSE code is some extremely minimal stuff for extracting mod lists. I know that WryeBash has a pretty decent savegame parser to support it's "Statistics" feature, but I don't think it's available in a browser form.
I'll keep bumping this for a few days, just to leave no rock unturned.