diff --git a/piexif.d.ts b/piexif.d.ts
new file mode 100644
index 0000000..542a402
--- /dev/null
+++ b/piexif.d.ts
@@ -0,0 +1,30 @@
+export function load( dataURL: string ): any;
+export function dump( exifObject: any ): string;
+export function insert( exifData: string, jpegData: string ): string;
+export function remove( jpegData: string ): string;
+
+export default _default = {
+  /**
+   * Get exif data as object.
+   * @param dataURL base64 Data Url or "\xff\xd8", or "Exif".
+   */
+  load,
+  /**
+   * Get exif as string to insert into JPEG.
+   * @param exifObject exif object
+   */
+  dump,
+  /**
+   * Insert exif into JPEG.
+   * @param exifData data to pass as a string, use `dump` to convert object to string.
+   * @param jpegData can be dataURL or binaryString.
+   * @returns same type as pass to `jpegData`, dataURL or binaryString.
+   */
+  insert,
+  /**
+   * Remove exif from JPEG.
+   * @param jpegData can be dataURL or binaryString.
+   * @returns same type as pass to `jpegData`, dataURL or binaryString.
+   */
+  remove
+};