#npm

Browserify lets you write Node-style modules using require() and bundle them into a single file that runs in the browser, resolving the CommonJS dependency graph and shimming Node core modules. It pioneered the idea of bringing npm packages to the front end.

node-gyp is the cross-platform command-line tool that compiles native add-on modules for Node.js, wrapping a vendored copy of Google's gyp build-configuration generator to drive the local C/C++ toolchain. It is invoked automatically by npm whenever a package contains native code that must be built from source.