diff --git a/.gitignore b/.gitignore
index 1a8d88c..dc8ea6e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ readme-draft.de.md
 webspree_session.json
 built/
 example-node/sort_worka.js
+sort_worka.js
\ No newline at end of file
diff --git a/changelog.md b/changelog.md
index cbae8de..30089d8 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## 10.0.0
+
+ * Worker is a module by default.
+ * Works with Deno.
+
 
 ## 9.1.0
 
diff --git a/example-deno/deno_raw_worker_test.js b/example-deno/deno_raw_worker_test.js
new file mode 100644
index 0000000..95bdc81
--- /dev/null
+++ b/example-deno/deno_raw_worker_test.js
@@ -0,0 +1,12 @@
+import makeloc from 'https://cdn.deno.land/dirname/versions/1.1.2/raw/mod.ts'//https://x.nest.land/dirname@v1.1.2/mod.ts'
+
+
+const { __dirname,  __filename } = makeloc(import.meta);
+
+
+console.log(`${__dirname}w.ts`.substr(1));
+
+const tsWorker = new Worker(`file:///${`${__dirname}w.ts`.substr(1)}`, {
+    type: "module",
+});
+tsWorker.postMessage("Hello World");
diff --git a/example-deno/file_usage.js b/example-deno/file_usage.js
index f7785ab..dd0f646 100644
--- a/example-deno/file_usage.js
+++ b/example-deno/file_usage.js
@@ -2,19 +2,17 @@ import { registerWorker, FILE, NO_SUPPORT_ERROR, TIME_OUT_ERROR, work } from "..
 import makeloc from 'https://cdn.deno.land/dirname/versions/1.1.2/raw/mod.ts'//https://x.nest.land/dirname@v1.1.2/mod.ts'
 
 
-const { __dirname,  __filename } = makeloc(import.meta)
+const { __dirname,  __filename } = makeloc(import.meta);
 
 
-console.log(`${__dirname}/sort_worka.js`.substr(1));
-console.log(`${__dirname}/w.ts`.substr(1));
-
-const tsWorker = new Worker(`${__dirname}/w.ts`.substr(1));
-tsWorker.postMessage("Hello World");
+// console.log(`${__dirname}sort_worka.js`.substr(1));
 
 registerWorker({
     name: `sort`,
-    resource: `${__dirname}/sort_worka.js`.substr(1),
-    loadMode: FILE
+    resource: `file:///${`${__dirname}..\\sort_worka.js`.substr(1)}`,
+    loadMode: FILE,
+    hope: 0,
+    timeout: 100,
 });
 
 work({ name: `sort`, input: [1, 2, 3, -8, -5, 2, 3, 45, 5] }).then(function (result) {
diff --git a/example-deno/readme.md b/example-deno/readme.md
index 40f148f..9a9d2c0 100644
--- a/example-deno/readme.md
+++ b/example-deno/readme.md
@@ -1,7 +1,3 @@
 # use worka in Deno
 
-**Warning** Does not work
-
-- self is not defined
-
-https://github.com/denoland/deno/issues/2639
+see file_usage.js
diff --git a/example-deno/sort_worka.js b/example-deno/sort_worka.js
deleted file mode 100644
index dfe6d04..0000000
--- a/example-deno/sort_worka.js
+++ /dev/null
@@ -1,27 +0,0 @@
-"use strict";
-self.addEventListener(`error`, function (errorEvent) {
-    errorEvent.preventDefault();
-    let asString;
-    if (errorEvent.message) {
-        asString = errorEvent.message;
-    } else {
-        asString = String(errorEvent);
-    }
-    self.postMessage({
-        error: asString,
-    });
-});
-const doWork = function sort(array) {
-    array.sort(); // run time error will trigger the catch
-    return array;
-};
-self.addEventListener(`message`, function (event) {
-    const message = event.data;
-    if (!Object.prototype.hasOwnProperty.call(message, `input`)) {
-        return; // only waking up
-    }
-    const {input} = message;
-    self.postMessage({
-        result: doWork(input),
-    });
-});
diff --git a/example-deno/w.ts b/example-deno/w.ts
index a5e4862..02642b1 100644
--- a/example-deno/w.ts
+++ b/example-deno/w.ts
@@ -1,7 +1,7 @@
 onmessage = function (e): void {
     console.log(e.data);
 
-    postMessage(e.data);
+    // postMessage(e.data);
 
-    workerClose();
+    // workerClose();
 };    
\ No newline at end of file
diff --git a/example-node/sort.js b/example-node/sort.js
index 18a7a0d..a133de3 100644
--- a/example-node/sort.js
+++ b/example-node/sort.js
@@ -1,4 +1,6 @@
-const sort = (array) => {
-    array.sort();
+(array) => {
+    array.sort(function (a, b) {
+        return a-b;
+    });
     return array;
 };
diff --git a/package.json b/package.json
index 92b77db..7fe0c29 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "worka",
-  "version": "9.1.1",
+  "version": "10.0.0",
   "description": "web workers results in promises",
   "license": "BSL-1.0",
   "type": "module",
@@ -14,8 +14,9 @@
     "prepublishOnly": "npm run bundle",
     "try": "node --experimental-modules example/index.js 8080",
     "prepare-node-example": "node --experimental-modules source/decorateWorker.js example-node/sort.js example-node/sort_worka.js",
+    "prepare-deno-example": "node --experimental-modules source/decorateWorker.js example-node/sort.js sort_worka.js",
     "node-example": "node --experimental-modules example-node/file_usage.js",
-    "deno-example": "deno run example-deno/file_usage.js"
+    "deno-example": "deno run --allow-read example-deno/file_usage.js "
   },
   "dependencies": {},
   "devDependencies": {
diff --git a/readme.md b/readme.md
index a0255de..bd26552 100644
--- a/readme.md
+++ b/readme.md
@@ -101,6 +101,13 @@ import {
     TIME_OUT_ERROR,
 } from "worka";
 
+// deno
+import {
+    registerWorker,
+    work,
+    // ...
+} from "https://unpkg.com/worka/source/worka.js";
+
 // node11-
 const {registerWorker, work, ...} = require("worka/built/worka.cjs");
 ```
@@ -137,7 +144,8 @@ Describes the worker. Example:
     max: navigator.hardwareConcurrency || 1,
     stateless: true,
     initialize: false,
-    timeOut: false
+    timeOut: false,
+    type: `module` || `classic`,
 }
 ```
 
diff --git a/source/worka.js b/source/worka.js
index 90a61eb..14dd559 100644
--- a/source/worka.js
+++ b/source/worka.js
@@ -63,6 +63,7 @@ const WORKER_DEFAULT_OPTIONS = {
     stateless: true,
     initialize: false,
     timeOut: false,
+    type: `module`,
 };
 
 // impossible to accidentally overwrite
@@ -164,7 +165,9 @@ self.addEventListener(\`message\`, function(event) {
 const instanciateWorker = function (worker) {
     worker.instanciated = true;
     if (worker.loadMode === FILE) {
-        worker.instance = new Worker(worker.resource);
+        worker.instance = new Worker(worker.resource, {
+            type: worker.type,
+        });
         return;
     }
     let { workerObjectURL } = worker;
@@ -173,7 +176,9 @@ const instanciateWorker = function (worker) {
         const workerBlob = new Blob([decoratedAsString], JS_MIME);
         workerObjectURL = URL.createObjectURL(workerBlob);
     }
-    worker.instance = new Worker(workerObjectURL);
+    worker.instance = new Worker(workerObjectURL, {
+        type: worker.type,
+    });
     if (worker.hope > 5 || worker.hope < 1) {
         // remove for debugging
         URL.revokeObjectURL(workerObjectURL);