Browserify transform for JSX (superset of JavaScript used in React library):

var React = require('react')

class Hello extends React.Component {

  render() {
    return <div>Hello, {this.props.name}!</div>
  }
}

Save the snippet above as main.js and then produce a bundle with the following command:

% browserify -t reactify main.js

reactify transform activates for files with either .js or .jsx extensions.

If you want to reactify modules with other extensions, pass an -x / --extension option:

% browserify -t coffeeify -t [ reactify --extension coffee ] main.coffee

If you don't want to specify extension, just pass --everything option:

% browserify -t coffeeify -t [ reactify --everything ] main.coffee

reactify transform also can compile a limited set of es6 syntax constructs into es5. Supported features are arrow functions, rest params, templates, object short notation and classes. You can activate this via --es6 or --harmony boolean option:

% browserify -t [ reactify --es6 ] main.js

es6 class getter and setter methods can be activated via --target es5 option:

% browserify -t [ reactify --es6 --target es5 ] main.js

You can also configure it in package.json

{
    "name": "my-package",
    "browserify": {
        "transform": [
            ["reactify", {"es6": true}]
        ]
    }
}