diff --git a/package.json b/package.json
index 5420a7e..2c6f158 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,10 @@
   "description": "A minimal, modern, generic, hot-reloading local web server to help web developers.",
   "main": "server.js",
   "type": "module",
+  "exports": {
+    "types": "./server.d.ts",
+    "default": "./server.js"
+  },
   "scripts": {
     "test": "npx ava --verbose",
     "sample": "node cmd.cjs --input=test/stubs"
diff --git a/server.d.ts b/server.d.ts
new file mode 100644
index 0000000..0862111
--- /dev/null
+++ b/server.d.ts
@@ -0,0 +1,187 @@
+import type { IncomingMessage, ServerResponse } from "node:http";
+import type { Server as HttpServer } from "node:http";
+import type { Http2SecureServer } from "node:http2";
+import type { FSWatcher } from "chokidar";
+import type WebSocket from "ws";
+
+export interface MessageOnStartArgs {
+  hosts: string[];
+  localhostUrl: string;
+  startupTime: number;
+  version: string;
+  options: EleventyDevServerOptions;
+}
+
+export interface MessageOnCloseArgs {
+  version: string;
+  options: EleventyDevServerOptions;
+}
+
+export interface OnRequestArgs {
+  url: URL;
+  pattern: URLPattern;
+  patternGroups: Record<string, string>;
+}
+
+export interface OnRequestResult {
+  status?: number;
+  headers?: Headers | Record<string, string>;
+  body?: string | Buffer;
+}
+
+export type OnRequestHandler = (
+  args: OnRequestArgs,
+) =>
+  | string
+  | Response
+  | OnRequestResult
+  | Promise<string | Response | OnRequestResult | void>
+  | void;
+
+export interface Logger {
+  info(...args: any[]): void;
+  log(...args: any[]): void;
+  error(...args: any[]): void;
+}
+
+export interface HttpsOptions {
+  key?: string;
+  cert?: string;
+}
+
+export interface EleventyDevServerOptions {
+  port?: number;
+
+  reloadPort?: number | false;
+
+  liveReload?: boolean;
+
+  showAllHosts?: boolean;
+
+  injectedScriptsFolder?: string;
+
+  portReassignmentRetryCount?: number;
+
+  https?: HttpsOptions;
+
+  domDiff?: boolean;
+
+  showVersion?: boolean;
+
+  encoding?: BufferEncoding;
+
+  pathPrefix?: string;
+
+  watch?: string[];
+
+  chokidarOptions?: Record<string, any>;
+
+  chokidar?: FSWatcher;
+
+  aliases?: Record<string, string>;
+
+  indexFileName?: string;
+
+  useCache?: boolean;
+
+  headers?: Record<string, string>;
+
+  middleware?: Array<
+    (req: IncomingMessage, res: ServerResponse, next?: () => void) => any
+  >;
+
+  onRequest?: Record<string, OnRequestHandler>;
+
+  messageOnStart?: (args: MessageOnStartArgs) => string | false | void;
+
+  messageOnClose?: (args: MessageOnCloseArgs) => string | false | void;
+
+  logger?: Logger;
+
+  /**
+   * deprecated aliases
+   */
+  folder?: string;
+
+  domdiff?: boolean;
+
+  enabled?: boolean;
+}
+
+export interface ReloadTemplate {
+  url: string;
+  inputPath: string;
+  content: string;
+}
+
+export interface ReloadEvent {
+  subtype?: string;
+
+  files?: string[];
+
+  build?: {
+    templates?: ReloadTemplate[];
+  };
+}
+
+export default class EleventyDevServer {
+  constructor(name: string, dir: string, options?: EleventyDevServerOptions);
+
+  static getServer(
+    name: string,
+    dir: string,
+    options?: EleventyDevServerOptions,
+  ): EleventyDevServer;
+
+  options: EleventyDevServerOptions;
+
+  dir: string;
+
+  fileCache: Record<string, string>;
+
+  updateServer?: WebSocket.Server;
+
+  logger: Logger;
+
+  watcher?: FSWatcher;
+
+  server: HttpServer | Http2SecureServer;
+
+  normalizeOptions(options?: EleventyDevServerOptions): void;
+
+  cleanupPathPrefix(pathPrefix?: string): string;
+
+  setAliases(aliases: Record<string, string>): void;
+
+  getWatcher(): FSWatcher | undefined;
+
+  watchFiles(targets: string[]): void;
+
+  serve(port: number): void;
+
+  ready(): Promise<void>;
+
+  close(): Promise<void>;
+
+  reload(event?: ReloadEvent): void;
+
+  reloadFiles(files: string[], useDomDiffingForHtml?: boolean): void;
+
+  sendError(args: { error: Error }): void;
+
+  sendUpdateNotification(obj: any): void;
+
+  getHosts(): string[];
+
+  getServerUrl(host: string, pathname?: string): string;
+
+  getServerUrlRaw(host: string, pathname?: string, isRaw?: boolean): string;
+
+  getServerPath(pathname: string): string;
+
+  getPort(): Promise<number>;
+
+  getUrlsFromFilePath(path: string): string[];
+
+  getBuildTemplatesFromFilePath(path: string): ReloadTemplate[];
+}