diff --git a/node-dir/node-dir-tests.ts b/node-dir/node-dir-tests.ts
new file mode 100644
index 0000000000..6cc03ec538
--- /dev/null
+++ b/node-dir/node-dir-tests.ts
@@ -0,0 +1,90 @@
+/// <reference path="node-dir.d.ts" />
+
+import * as dir from "node-dir";
+
+// display contents of files in this script's directory
+dir.readFiles("./",
+    function(err, content, next) {
+        console.log('content:', content);
+        next();
+    },
+    function(err, files) {
+        console.log('finished reading files:', files);
+    });
+
+// display contents of huge files in this script's directory
+dir.readFilesStream("./",
+    function(err: any, stream: any, next: any) {
+        var content = '';
+        stream.on('data', function(buffer: any) {
+            content += buffer.toString();
+        });
+        stream.on('end',function() {
+            console.log('content:', content);
+            next();
+        });
+    },
+    function(err, files) {
+        console.log('finished reading files:', files);
+    });
+
+// match only filenames with a .txt extension and that don't start with a `.´
+dir.readFiles("./", {
+    match: /.txt$/,
+    exclude: /^\./
+    }, function(err, content, next) {
+        console.log('content:', content);
+        next();
+    },
+    function(err, files){
+        console.log('finished reading files:',files);
+    });
+
+// exclude an array of subdirectory names
+dir.readFiles("./", {
+    exclude: ['node_modules', 'test']
+    }, function(err, content, next) {
+        console.log('content:', content);
+        next();
+    },
+    function(err, files){
+        console.log('finished reading files:',files);
+    });
+
+
+// the callback for each file can optionally have a filename argument as its 3rd parameter
+// and the finishedCallback argument is optional, e.g.
+dir.readFiles("./", function(err: any, content: any, filename: string, next: any) {
+    console.log('processing content of file', filename);
+    next();
+});
+
+dir.files("./", function(err, files) {
+    console.log(files);
+});
+
+dir.files("./", function(err, files) {
+    // sort descending
+    files.reverse();
+    // include only certain filenames
+    files = files.filter(function(file: any) {
+       return ['allowed', 'file', 'names'].indexOf(file) > -1;
+    });
+    // exclude some filenames
+    files = files.filter(function(file: any) {
+        return ['exclude', 'these', 'files'].indexOf(file) === -1;
+    });
+});
+
+dir.subdirs("./", function(err, subdirs) {
+    console.log(subdirs);
+});
+
+dir.paths("./", function(err, paths) {
+    console.log('files:\n', paths.files);
+    console.log('subdirs:\n', paths.dirs);
+});
+
+dir.paths("./", true, function(err, paths) {
+    console.log('paths:\n', paths);
+});
diff --git a/node-dir/node-dir.d.ts b/node-dir/node-dir.d.ts
new file mode 100644
index 0000000000..d131f6b9a1
--- /dev/null
+++ b/node-dir/node-dir.d.ts
@@ -0,0 +1,65 @@
+// Type definitions for node-dir
+// Project: https://github.com/fshost/node-dir
+// Definitions by: Panu Horsmalahti <https://github.com/panuhorsmalahti/>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module "node-dir" {
+    export interface Options {
+        // file encoding (defaults to 'utf8')
+        encoding?: string;
+
+        // a regex pattern or array to specify filenames to ignore
+        exclude?: RegExp | string[];
+
+        // a regex pattern or array to specify directories to ignore
+        excludeDir?: RegExp | string[];
+
+        // a regex pattern or array to specify filenames to operate on
+        match?: RegExp | string[];
+
+        // a regex pattern or array to specify directories to recurse
+        matchDir?: RegExp | string[];
+
+        // whether to recurse subdirectories when reading files (defaults to true)
+        recursive?: boolean;
+
+        // sort files in each directory in descending order
+        reverse?: boolean;
+
+        // whether to aggregate only the base filename rather than the full filepath
+        shortName?: boolean;
+
+        // sort files in each directory in ascending order (defaults to true)
+        sort?: boolean;
+
+        // control if done function called on error (defaults to true)
+        doneOnErr?: boolean;
+    }
+
+    export interface FileCallback {
+        (error: any, content: any, next: () => void): void;
+    }
+
+    export interface FileNamedCallback {
+        (error: any, content: any, filename: string, next: () => void): void;
+    }
+
+    export interface StreamCallback {
+        (error: any, stream: any, next: () => void): void;
+    }
+
+    export interface FinishedCallback {
+        (error: any, files: any): void;
+    }
+
+    export function readFiles(dir: string, fileCallback: FileCallback, finishedCallback?: FinishedCallback): void;
+	export function readFiles(dir: string, fileCallback: FileNamedCallback, finishedCallback?: FinishedCallback): void;
+    export function readFiles(dir: string, options: Options, fileCallback: FileCallback, finishedCallback?: FinishedCallback): void;
+    export function readFiles(dir: string, options: Options, fileCallback: FileNamedCallback, finishedCallback?: FinishedCallback): void;
+    export function readFilesStream(dir: string, options: Options, streamCallback: StreamCallback,
+        finishedCallback?: FinishedCallback): void;
+    export function files(dir: string, callback: (error: any, files: any) => void): void;
+    export function subdirs(dir: string, callback: (error: any, subdirs: any) => void): void;
+    export function paths(dir: string, callback: (error: any, paths: any) => void): void;
+    export function paths(dir: string, combine: boolean, callback: (error: any, paths: any) => void): void;
+}