CodePen is listed and that’s searchable by other users here. Is that what you mean? Otherwise, there’s the whole web! There’s so much code around already, and so many people writing more code for there own projects each day, with new browser features coming into play to supersede/rethink whatever we’ve learnt in the past, that I don’t see how there could be one master/central sharing point. You can only really store, categorise and manage snippets that are useful to you, and rely on Google (or your own imagination) for the rest.