diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a252c5..94dbcd4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Change Log
 
+## v0.8.1 / 2023-10-
+### Added
+- TypeScript base64 interfaces.
+- Disable webpack polyfill.
+
 ## v0.8.0 / 2023-09-27
 ### Added
 - TypeScript interfaces.
diff --git a/bower.json b/bower.json
index 76db6cb..f9e4b25 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "js-md5",
-  "version": "0.8.0",
+  "version": "0.8.1",
   "main": ["src/md5.js"],
   "ignore": [
     "tests"
diff --git a/index.d.ts b/index.d.ts
index bf64806..40555b2 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -32,6 +32,11 @@ interface Hasher {
    * Return hash in integer array.
    */
   array(): number[];
+
+  /**
+   * Return hash in base64 string.
+   */
+  base64(): string;
 }
 
 interface Hmac {
@@ -89,6 +94,14 @@ interface Hmac {
    * @param message The message you want to hash.
    */
   array(secretKey: Message, message: Message): number[];
+
+  /**
+   * Return hash in base64 string.
+   *
+   * @param secretKey The Secret Key
+   * @param message The message you want to hash.
+   */
+  base64(secretKey: Message, message: Message): string;
 }
 
 interface Hash {
@@ -139,6 +152,13 @@ interface Hash {
    */
   array(message: Message): number[];
 
+  /**
+   * Return hash in base64 string.
+   *
+   * @param message The message you want to hash.
+   */
+  base64(message: Message): string;
+
   /**
    * HMAC interface
    */
diff --git a/package.json b/package.json
index 9438771..e77bc88 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,9 @@
 {
   "name": "js-md5",
-  "version": "0.8.0",
+  "version": "0.8.1",
   "description": "A simple MD5 hash function for JavaScript supports UTF-8 encoding.",
-  "main": "src/md5.js",
+  "main": "build/md5.min.js",
+  "module": "src/md5.js",
   "devDependencies": {
     "expect.js": "~0.3.1",
     "jsdoc": "~4.0.2",
@@ -41,5 +42,9 @@
     "exclude": [
       "tests"
     ]
+  },
+  "browser": {
+    "crypto": false,
+    "buffer": false
   }
 }
diff --git a/src/md5.js b/src/md5.js
index ae9000c..c075aa2 100644
--- a/src/md5.js
+++ b/src/md5.js
@@ -2,7 +2,7 @@
  * [js-md5]{@link https://github.com/emn178/js-md5}
  *
  * @namespace md5
- * @version 0.8.0
+ * @version 0.8.1
  * @author Chen, Yi-Cyuan [emn178@gmail.com]
  * @copyright Chen, Yi-Cyuan 2014-2023
  * @license MIT