diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 0000000..a46d1ff
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,59 @@
+// Type definitions for Croppr.js
+// Definitions by: James Ooi https://github.com/jamesssooi
+// Based on the template: https://www.typescriptlang.org/docs/handbook/declaration-files/templates/module-class-d-ts.html
+
+
+/*~ Expose this module as a UMD */
+export as namespace Croppr;
+
+/*~ Specify the class constructor function */
+export = Croppr;
+
+
+declare class Croppr {
+
+  /** @constructor */
+  constructor(element: string | HTMLElement, options?: Croppr.CropprOptions, deferred?: boolean)
+
+  /** Gets the value of the crop region */
+  getValue(mode?: 'real' | 'ratio' | 'raw'): Croppr.CropprValue
+
+  /** Destroys the Croppr instance */
+  destroy(): void
+
+  /** Moves the crop region to a specified coordinate */
+  moveTo(x: number, y: number): Croppr
+
+  /** Resizes the crop region to a specified width and height */
+  resizeTo(width: number, height: number, origin?: Array<number>): Croppr
+
+  /** Scale the crop region by a factor */
+  scaleBy(factor: number, origin?: Array<number>): Croppr
+
+  /** Resets the crop region to the initial settings */
+  reset(): Croppr
+}
+
+/*~ Declare type modules */
+declare namespace Croppr {
+
+  export interface CropprOptions {
+    aspectRatio?: number;
+    maxSize?: [number, number, '%' | 'px'];
+    minSize?: [number, number, '%' | 'px'];
+    startSize?: [number, number, '%' | 'px'];
+    onCropStart?(data: Croppr.CropprValue): void;
+    onCropMove?(data: Croppr.CropprValue): void;
+    onCropEnd?(data: Croppr.CropprValue): void;
+    onInitialize?(instance: Croppr): void;
+    returnMode?: 'real' | 'ratio' | 'raw';
+  }
+
+  export interface CropprValue {
+    x: number;
+    y: number;
+    width: number;
+    height: number
+  }
+
+}
diff --git a/package.json b/package.json
index 250358c..4d9a924 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "2.1.0",
   "description": "A vanilla JavaScript image cropper that's lightweight, awesome, and has absolutely zero dependencies.",
   "main": "dist/croppr.js",
+  "typings": "./index.d.ts",
   "scripts": {
     "test": "mocha",
     "build": "rollup --config rollup.config.dev.js & cp src/css/croppr.css dist/croppr.css",