diff --git a/package.json b/package.json
index 056801b8..455a82b0 100644
--- a/package.json
+++ b/package.json
@@ -3,8 +3,10 @@
   "version": "4.0.0",
   "description": "libass Subtitle Renderer and Parser library for browsers",
   "main": "dist/js/subtitles-octopus.js",
+  "types": "types.d.ts",
   "files": [
-    "dist/js/subtitles*"
+    "dist/js/subtitles*",
+    "types.d.ts"
   ],
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
diff --git a/types.d.ts b/types.d.ts
new file mode 100644
index 00000000..ffaab25c
--- /dev/null
+++ b/types.d.ts
@@ -0,0 +1,127 @@
+interface OptionsBase {
+    /**
+     *  The video element to attach listeners to
+     */
+    video?: HTMLVideoElement,
+
+    /**
+     *  The canvas to render the subtitles to.
+     *  If none is given it will create a new canvas and insert it as a sibling of the video element (only if the video element exists)
+     */
+    canvas?: HTMLCanvasElement,
+
+    /**
+     * The URL of the worker
+     *
+     * @default `subtitles-octopus-worker.js`
+     */
+    workerUrl?: string,
+
+    /**
+     * The URL of the legacy worker
+     *
+     * @default `subtitles-octopus-worker-legacy.js`
+     */
+    legacyWorkerUrl?: string,
+
+    /**
+     * An array of links to the fonts used in the subtitle
+     */
+    fonts?: string[]
+
+    /**
+     * Object with all available fonts - Key is font name in lower case, value is link
+     *
+     * @example `{"arial": "/font1.ttf"}`
+     */
+    availableFonts?: Record<string, string>
+
+    /**
+     * The amount of time the subtitles should be offset from the video
+     *
+     * @default 0
+     */
+    timeOffset?: number
+
+    /**
+     * Whether performance info is printed in the console
+     *
+     * @default false
+     */
+    debug?: boolean
+
+    /**
+     * Function that's called when SubtitlesOctopus is ready
+     */
+    onReady?: () => void
+
+    /**
+     * Function called in case of critical error meaning the subtitles wouldn't be shown
+     * and you should use an alternative method (for instance it occurs if browser doesn't support web workers)
+     */
+    onError?: () => void
+
+
+    /**
+     * Enable Fast Render Mode (Lossy)
+     *
+     * This is experimental feature
+     *
+     * @default false
+     * @see https://github.com/libass/JavascriptSubtitlesOctopus#fast-render-mode-lossy-experimental
+     */
+    lossyRender?: boolean
+}
+
+interface OptionsWithSubUrl extends OptionsBase {
+    subUrl: string
+}
+
+interface OptionsWithSubContent extends OptionsBase {
+    subContent: string
+}
+
+export type Options = OptionsWithSubUrl | OptionsWithSubContent
+
+declare class SubtitlesOctopus {
+    constructor(options: Options)
+
+    /**
+     * Render subtitles at specified time
+     * @param time
+     */
+    setCurrentTime(time: number): void
+
+
+
+    /**
+     * Works the same as the {@link subUrl} option. It will set the subtitle to display by its URL.
+     * @param url
+     */
+    setTrackByUrl(url: string): void
+
+
+
+    /**
+     * Works the same as the {@link subContent} option. It will set the subtitle to display by its content.
+     * @param content
+     */
+    setTrack(content: string): void
+
+
+
+    /**
+     * This simply removes the subtitles.
+     * You can use {@link setTrackByUrl} or {@link setTrack} methods to set a new subtitle file to be displayed.
+     */
+    freeTrack(): void
+
+
+
+    /**
+     * Destroy instance
+     */
+    dispose(): void
+}
+
+export default SubtitlesOctopus