diff --git a/LICENSE b/LICENSE
index 23e3b59..c385123 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2014, Michael J. Ryan
+Copyright (c) 2020, Michael J. Ryan
 
 Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
 
diff --git a/README.md b/README.md
index 0e20353..a94ee41 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,9 @@
 
 A Node.js module for generating and validation V4 UUIDs
 
+NOTE: as of Version 2, legacy browsers are no longer supported, you can keep using 1.x if you need
+to support modern and legacy browsers.
+
 ## Install
 
 ```bash
@@ -11,15 +14,38 @@ $ npm install uuid4
 ## Usage
 
 ```javascript
-var uuid4 = require('uuid4');
+import uuid4 from "uuid4";
 
 // Generate a new UUID
 var id = uuid4();
 
-// Validate a UUID as proper V4 format
-uuid4.valid(id);  // true
+// Validate a UUID as proper V4 format (case-insensitive)
+uuid4.valid(id); // true
+```
+
+### Direct in Browser or Deno
+
+```
+import uuid4 from 'https://cdn.jsdelivr.net/gh/tracker1/node-uuid4/browser.mjs';
+
+// or
+
+const { default: uuid4 } = await import('https://cdn.jsdelivr.net/gh/tracker1/node-uuid4/browser.mjs')
+```
+
+### Deno
+
+Use the canonical implementation instead.
+
+```
+import { v4 as uuid4 } from "https://deno.land/std/uuid/mod.ts";
+
+const id = uuid4.generate();
+
+console.log(id);
+console.log(uuid4.validate(id));
 ```
 
 ## License
 
-ISC License
\ No newline at end of file
+ISC License
diff --git a/browser.js b/browser.js
index a485759..a7f7872 100644
--- a/browser.js
+++ b/browser.js
@@ -1,57 +1,16 @@
-(function() {
-  function getBytes() {
-    try {
-      // Modern Browser
-      return Array.from(
-        (window.crypto || window.msCrypto).getRandomValues(new Uint8Array(16))
-      );
-    } catch (error) {
-      // Legacy Browser, fallback to Math.random
-      var ret = [];
-      while (ret.length < 16) ret.push((Math.random() * 256) & 0xff);
-      return ret;
-    }
-  }
+const uuidPattern = /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
+function valid(uuid) {
+  return uuidPattern.test(uuid);
+}
 
-  function m(v) {
-    v = v.toString(16);
-    if (v.length < 2) v = "0" + v;
-    return v;
-  }
+// Based on https://abhishekdutta.org/blog/standalone_uuid_generator_in_javascript.html
+// IE11 and Modern Browsers Only
+function uuid4() {
+  var temp_url = URL.createObjectURL(new Blob());
+  var uuid = temp_url.toString();
+  URL.revokeObjectURL(temp_url);
+  return uuid.split(/[:\/]/g).pop().toLowerCase(); // remove prefixes
+}
+uuid4.valid = valid;
 
-  function genUUID() {
-    var rnd = getBytes();
-    rnd[6] = (rnd[6] & 0x0f) | 0x40;
-    rnd[8] = (rnd[8] & 0x3f) | 0x80;
-    rnd = rnd
-      .map(m)
-      .join("")
-      .match(/(.{8})(.{4})(.{4})(.{4})(.{12})/);
-    rnd.shift();
-    return rnd.join("-");
-  }
-
-  var uuidPattern = /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/;
-  function isUUID(uuid) {
-    return uuidPattern.test(uuid);
-  }
-
-  genUUID.valid = isUUID;
-
-  // global
-  if (window) {
-    window.uuid4 = genUUID;
-  }
-
-  // Node-style CJS
-  if (typeof module !== "undefined" && module.exports) {
-    module.exports = genUUID;
-  }
-
-  // AMD - legacy
-  if (typeof define === "function" && define.amd) {
-    define([], function() {
-      return genUUID;
-    });
-  }
-})();
+module.exports = uuid4;
diff --git a/browser.mjs b/browser.mjs
new file mode 100644
index 0000000..9010f16
--- /dev/null
+++ b/browser.mjs
@@ -0,0 +1,17 @@
+const uuidPattern = /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
+function valid(uuid) {
+  return uuidPattern.test(uuid);
+}
+
+// Based on https://abhishekdutta.org/blog/standalone_uuid_generator_in_javascript.html
+// IE11 and Modern Browsers Only
+function uuid4() {
+  var temp_url = URL.createObjectURL(new Blob());
+  var uuid = temp_url.toString();
+  URL.revokeObjectURL(temp_url);
+  return uuid.split(/[:\/]/g).pop().toLowerCase(); // remove prefixes
+}
+uuid4.valid = valid;
+
+export default uuid4;
+export { uuid4, valid };
diff --git a/index.js b/index.js
index 97a3ff5..0af739e 100644
--- a/index.js
+++ b/index.js
@@ -1,34 +1,18 @@
-"use strict";
+const crypto = require("crypto");
 
-var crypto = require("crypto"),
-  uuidPattern = /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/;
-
-exports = module.exports = genUUID;
-exports.valid = isUUID;
-
-function genUUID(callback) {
-  if (typeof callback !== "function") {
-    var rnd = crypto.randomBytes(16);
-    rnd[6] = (rnd[6] & 0x0f) | 0x40;
-    rnd[8] = (rnd[8] & 0x3f) | 0x80;
-    rnd = rnd.toString("hex").match(/(.{8})(.{4})(.{4})(.{4})(.{12})/);
-    rnd.shift();
-    return rnd.join("-");
-  }
-  crypto.randomBytes(16, function(err, rnd) {
-    if (err) return callback(err);
-    try {
-      rnd[6] = (rnd[6] & 0x0f) | 0x40;
-      rnd[8] = (rnd[8] & 0x3f) | 0x80;
-      rnd = rnd.toString("hex").match(/(.{8})(.{4})(.{4})(.{4})(.{12})/);
-      rnd.shift();
-      return callback(null, rnd.join("-"));
-    } catch (err2) {
-      return callback(err2);
-    }
-  });
+const uuidPattern = /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
+function valid(uuid) {
+  return uuidPattern.test(uuid);
 }
 
-function isUUID(uuid) {
-  return uuidPattern.test(uuid);
+function uuid4() {
+  var rnd = crypto.randomBytes(16);
+  rnd[6] = (rnd[6] & 0x0f) | 0x40;
+  rnd[8] = (rnd[8] & 0x3f) | 0x80;
+  rnd = rnd.toString("hex").match(/(.{8})(.{4})(.{4})(.{4})(.{12})/);
+  rnd.shift();
+  return rnd.join("-");
 }
+uuid4.valid = valid;
+
+module.exports = uuid4;
diff --git a/index.mjs b/index.mjs
new file mode 100644
index 0000000..89d5275
--- /dev/null
+++ b/index.mjs
@@ -0,0 +1,19 @@
+import crypto from "crypto";
+
+const uuidPattern = /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
+function valid(uuid) {
+  return uuidPattern.test(uuid);
+}
+
+function uuid4() {
+  var rnd = crypto.randomBytes(16);
+  rnd[6] = (rnd[6] & 0x0f) | 0x40;
+  rnd[8] = (rnd[8] & 0x3f) | 0x80;
+  rnd = rnd.toString("hex").match(/(.{8})(.{4})(.{4})(.{4})(.{12})/);
+  rnd.shift();
+  return rnd.join("-");
+}
+uuid4.valid = valid;
+
+export default uuid4;
+export { uuid4, valid };
diff --git a/package.json b/package.json
index 71506e6..60f98c5 100644
--- a/package.json
+++ b/package.json
@@ -1,9 +1,13 @@
 {
   "name": "uuid4",
-  "version": "1.1.4",
+  "version": "2.0.3",
   "description": "Node UUID v4 Generator",
   "main": "index.js",
-  "browser": "browser.js",
+  "module": "index.mjs",
+  "browser": {
+    "./index.js": "./browser.js",
+    "./index.mjs": "./browser.mjs"
+  },
   "repository": {
     "type": "git",
     "url": "https://github.com/tracker1/node-uuid4.git"
@@ -20,4 +24,4 @@
     "url": "https://github.com/tracker1/node-uuid4/issues"
   },
   "homepage": "https://github.com/tracker1/node-uuid4"
-}
+}
\ No newline at end of file
diff --git a/temp.ts b/temp.ts
new file mode 100644
index 0000000..4395990
--- /dev/null
+++ b/temp.ts
@@ -0,0 +1,5 @@
+import { v4 as uuid4 } from "https://deno.land/std/uuid/mod.ts";
+
+const id = uuid4.generate();
+console.log(id);
+console.log(uuid4.validate(id));