Extra Goodies
Browser Extension: Reason-tools
Reason-tools lets you quickly toggle between OCaml syntax and Reason syntax when you're browsing tutorials and documentations written in either syntax.
REPL
re:bench
re:bench is an online benchmarking playground. It supports test cases written in Reason, OCaml and JavaScript, and allows sharing of benchmarks through unique URLs. It's compiled to JS using BuckleScript.
Redex
Redex: the Reason packages registry.