Codegraph is a command utility written in about 50 lines of Clojure. It reads Clojure code with Clojure's builtin function
read-string, analyzes the code and generates a dot file, which can be fed into Graphviz to generate a dependency graph of the given code. It works nicely with ClojureScript. And it's a beautiful demonstration of Clojure's homoiconicity (which is a fancy technical term for "code is data").