diff --git a/browserify/browserify-tests.ts b/browserify/browserify-tests.ts
new file mode 100644
index 000000000..219ab0b77
--- /dev/null
+++ b/browserify/browserify-tests.ts
@@ -0,0 +1,7 @@
+import browserify = require("browserify");
+import fs = require("fs");
+
+var b = browserify();
+b.add('./browser/main.js');
+b.transform('deamdify');
+b.bundle().pipe(fs.createWriteStream('bundle.js'));
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diff --git a/browserify/browserify.d.ts b/browserify/browserify.d.ts
new file mode 100644
index 000000000..cfdce2da2
--- /dev/null
+++ b/browserify/browserify.d.ts
@@ -0,0 +1,39 @@
+// Type definitions for Browserify
+// Project: http://browserify.org/
+// Definitions by: Andrew Gaspar <https://github.com/AndrewGaspar/>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../node/node.d.ts" />
+
+interface BrowserifyObject {
+	add(file: string);
+	require(file: string, opts?: {
+		expose: string;
+	});
+	bundle(opts?: {
+		insertGlobals?: boolean;
+		detectGlobals?: boolean;
+		debug?: boolean;
+		standalone?: string;
+		insertGlobalVars? ;
+	}, cb?: (err, src) => void): ReadableStream;
+
+	external(file: string);
+	ignore(file: string);
+	transform(tr: string);
+	transform(tr: Function);
+
+	on(event: string, action: Function): void;
+	on(event: "file", action: (file, id, parent) => void);
+}
+
+declare module "browserify" {
+	function browserify(): BrowserifyObject;
+	function browserify(files: string[]): BrowserifyObject;
+	function browserify(opts: {
+		entries?: string[];
+		noParse?: string[];
+	}): BrowserifyObject;
+	
+	export = browserify;
+}
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