frustra/bbcode is a fast BBCode compiler for Go. It supports custom tags, safe html output (for user-specified input), and allows for graceful parsing of syntax errors similar to the output of a regex bbcode compiler.
goquery brings a syntax and a set of features similar to jQuery to the Go language. It is based on Go's net/html package and the CSS Selector library cascadia. Since the net/html parser returns nodes, and not a full-featured DOM tree, jQuery's stateful manipulation functions (like height(), css(), detach()) have been left off.