diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 4c2fbc8e1..0a5475d6c 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -83,6 +83,7 @@ All definitions files include a header with the author and editors, so at some p
 * [Firefox](https://developer.mozilla.org/en-US/docs/Web/API) (by [vvakame](https://github.com/vvakame))
 * [FlexSlider](http://www.woothemes.com/flexslider/) (by [Diullei Gomes](https://github.com/Diullei))
 * [Flight by Twitter](http://flightjs.github.com/flight/) (by [Jonathan Hedrén](https://github.com/jonathanhedren))
+* [flipsnap.js](http://pxgrid.github.io/js-flipsnap/) (by [kubosho_](https://github.com/kubosho), [gsino](https://github.com/gsino), [Mayuki Sawatari](https://github.com/mayuki))
 * [Foundation](http://foundation.zurb.com/) (by [Boris Yankov](https://github.com/borisyankov))
 * [FPSMeter](http://darsa.in/fpsmeter/) (by [Aaron Lampros](https://github.com/alampros))
 * [fs-extra](https://github.com/jprichardson/node-fs-extra) (by [midknight41](https://github.com/midknight41))
diff --git a/flipsnap/flipsnap-tests.ts b/flipsnap/flipsnap-tests.ts
new file mode 100644
index 000000000..a6b2f4fe8
--- /dev/null
+++ b/flipsnap/flipsnap-tests.ts
@@ -0,0 +1,13 @@
+/**
+ * Created by kubosho_ on 6/16/2014.
+ */
+///<reference path='flipsnap.d.ts'/>
+
+Flipsnap('', {
+    maxPoint: 3,
+    distance: 230,
+    transitionDuration: 500,
+    disableTouch: true,
+    disable3d: false
+});
+
diff --git a/flipsnap/flipsnap.d.ts b/flipsnap/flipsnap.d.ts
new file mode 100644
index 000000000..55e601704
--- /dev/null
+++ b/flipsnap/flipsnap.d.ts
@@ -0,0 +1,93 @@
+// Type definitions for flipsnap.js
+// Project: http://pxgrid.github.io/js-flipsnap/
+// Definitions by: kubosho_ <https://github.com/kubosho>, gsino <https://github.com/gsino>, Mayuki Sawatari <https://github.com/mayuki>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+interface IFlipsnap {
+    /**
+     * Return true or false. true is returned when there is previous element.
+     */
+    hasPrev(): boolean;
+
+    /**
+     * Return true or false. true is returned when there is next element.
+     */
+    hasNext(): boolean;
+
+    /**
+     * Move to previous item.
+     */
+    toPrev(transitionDuration?: number): void;
+
+    /**
+     * Move to next item.
+     */
+    toNext(transitionDuration?: number): void;
+
+    /**
+     * Move to item of number.
+     */
+    moveToPoint(point: number, transitionDuration?: number): void;
+
+    /**
+     * Recalculate values
+     */
+    refresh(): void;
+
+    element: HTMLElement;
+}
+
+interface FlipsnapStatic {
+    /**
+     * @param element The element
+     */
+    (element: HTMLElement, opts?: FlipsnapOptions): IFlipsnap;
+
+    /**
+     * @param selector The parameter must be CSS Selector. When set string, to get first element of result. Not all element.
+     */
+    (selector: string, opts?: FlipsnapOptions): IFlipsnap;
+}
+
+interface FlipsnapOptions {
+    /**
+     * Stop point count. default is auto calculate from element item count.
+     */
+    maxPoint?: number;
+    /**
+     * Move distance. default is auto calculate from element width and maxPont.
+     */
+    distance?: number;
+    /**
+     * Transition duration (millisecond). default is 350.
+     */
+    transitionDuration?: number;
+    /**
+     * When set true, touch event is disabled. Only handling button or etc interface. default is false.
+     */
+    disableTouch?: boolean;
+    /**
+     * When support 3D transform browser and this option set true, it is not used 3D transform and use 2D transform. You should set true, when it is a device which has a bug in 3D transform(old Android or BlackBerry etc). default is false.
+     */
+    disable3d?: boolean;
+}
+
+interface HTMLElement {
+    addEventListener(type: "fstouchstart", listener: (ev: Event) => any, useCapture?: boolean): void;
+    addEventListener(type: "fstouchmove", listener: (ev: FlipsnapTouchMoveEvent) => any, useCapture?: boolean): void;
+    addEventListener(type: "fstouchend", listener: (ev: FlipsnapTouchEndEvent) => any, useCapture?: boolean): void;
+}
+
+interface FlipsnapTouchMoveEvent extends Event {
+    delta: number;
+    direction: number;
+}
+
+interface FlipsnapTouchEndEvent extends Event {
+    moved: boolean;
+    cancelled: boolean;
+    newPoint: number;
+    originalPoint: number;
+}
+
+declare var Flipsnap: FlipsnapStatic;