Require.js http://requirejs.org/
- AMD Loader
- Many plugins
- Good docs
- Ugly codebase
- R.js builder works pretty well
Curl.js https://github.com/cujojs/curl
- Extensible - pretty good APIs
- Better code quality
- Outdated and incomplete docs
- Not so many plugins
- Cram builder not so robust
- Loader for pure common js modules
ES6 Module Transpiler https://github.com/square/es6-module-transpiler
- Compiles es6 modules to AMD or commonjs modules
- Just modules, not other es6 features
Traceur Compiler https://github.com/google/traceur-compiler
- Compiles es6 into es5
- Almost no docs
- Does it support compiling into AMD/commonjs?