diff --git a/src/index.ts b/src/index.ts
index c37e740..59bfb0b 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,33 +1,13 @@
 import http, { IncomingMessage, ServerResponse } from "node:http";
 import { URL } from "node:url";
-import { Buffer } from "node:buffer";
 import querystring from "node:querystring";
 
 import Router from "./router.js";
 import Tpl from "./template.js";
 
-export { Router, Tpl, Request, Response, Middleware };
+import { Request, Response, Middleware } from "./types.js";
 
-type Middleware = (req: Request, res: Response, next: () => void) => void;
-
-interface Request extends IncomingMessage {
-  parsedUrl: {
-    pathname: string;
-    split: string[];
-    searchParams: URLSearchParams;
-    qs: Record<string, string>;
-  };
-  cookies: Record<string, string>;
-  params?: Record<string, string>;
-  post?: Record<string, string>;
-};
-
-interface Response extends ServerResponse {
-  reply: (options: { code?: number; type?: string; body: string }) => void;
-  json: (body: string, code?: number) => void;
-  html: (body: string, code?: number) => void;
-  redirect: (target: string, code?: number) => void;
-}
+export { Router, Tpl };
 
 export default class Flummpress {
   private server?: http.Server;
@@ -74,7 +54,7 @@ export default class Flummpress {
     this.server = http
       .createServer(async (request: IncomingMessage, response: ServerResponse) => {
         const req = request as Request;
-        const res = this.createResponse(req, response);
+        const res = this.createResponse(response);
         const start = process.hrtime();
 
         try {
@@ -173,10 +153,7 @@ export default class Flummpress {
     });
   }
 
-  private createResponse(
-    req: Request,
-    response: ServerResponse
-  ): Response {
+  private createResponse(response: ServerResponse): Response {
     const res = response as Response;
 
     res.reply = ({ code = 200, type = "text/html", body }) => {
diff --git a/src/router.ts b/src/router.ts
index d74ba5f..110cfae 100644
--- a/src/router.ts
+++ b/src/router.ts
@@ -2,10 +2,9 @@ import fs from "node:fs";
 import path from "node:path";
 import Tpl from "./template.js";
 
-import { Request } from "./index.js";
-import { ServerResponse } from "node:http";
+import { RouteCallback } from "./types.js";
+
 
-type RouteCallback = (req: Request, res: ServerResponse) => void;
 
 export default class Router {
   private routes: Map<RegExp | string, { [key: string]: RouteCallback | RouteCallback[] }>;
diff --git a/src/types.d.ts b/src/types.d.ts
new file mode 100644
index 0000000..49a8a7f
--- /dev/null
+++ b/src/types.d.ts
@@ -0,0 +1,23 @@
+import { IncomingMessage, ServerResponse } from "node:http";
+
+export interface Request extends IncomingMessage {
+  parsedUrl: {
+    pathname: string;
+    split: string[];
+    searchParams: URLSearchParams;
+    qs: Record<string, string>;
+  };
+  cookies: Record<string, string>;
+  params?: Record<string, string>;
+  post?: Record<string, string>;
+}
+
+export interface Response extends ServerResponse {
+  reply: (options: { code?: number; type?: string; body: string }) => void;
+  json: (body: string, code?: number) => void;
+  html: (body: string, code?: number) => void;
+  redirect: (target: string, code?: number) => void;
+}
+
+export type Middleware = (req: Request, res: Response, next: () => void) => void;
+export type RouteCallback = (req: Request, res: Response) => void;