diff --git a/src/lib/extensions.js b/src/lib/extensions.js
index e3b79b35f..8501e578c 100644
--- a/src/lib/extensions.js
+++ b/src/lib/extensions.js
@@ -80,7 +80,6 @@ export default [
         creator: "Steve0Greatness",
         isGitHub: true, 
     },
-    
     {
         name: "Dictation",
         description: "Convert your voice into text. (not supported in all browsers)",
@@ -88,7 +87,7 @@ export default [
         banner: "pooiod/Dictation.svg",
         creator: "pooiod7",
     },
-        {
+    {
         name: "Doodle Recognition",
         description: "A implementation of Google's Quick Draw image vision model",
         code: "TheShovel/doodlerec.js",
@@ -96,7 +95,7 @@ export default [
         creator: "TheShovel",
         isGitHub: true,
     },
-            {
+    {
         name: "Stylus",
         description: "Get the pressure and tilt of a stylus or graphic tablet",
         code: "sourdoggy/stylus extension.js",
@@ -152,31 +151,6 @@ export default [
         banner: "dumzdev/removebgbanner.svg",
         creator: "dumzdev",
     },
-    /*{
-        name: "PenguinAI",
-        description: "Talk to AI! Use Models like DALL-E-3, GPT, LLama, Claude, and more!",
-        code: "MubiLop/penguingpt.js",
-        banner: "MubiLop/penguingpt.avif",
-        creator: "cicerorph",
-        creatorAlias: "MubiLop",
-        isGitHub: true,
-        unstable: true,
-        documentation: "PenguinAI",
-        unstableReason: "AI models can generate unintended or inappropriate output.\nSome AI models may also become temporarily inaccessible.\n\nUse at your own risk.",
-    },*/
-/*
-    {
-        name: "Block AI",
-        description: "An AI powered chat bot to help you code in your projects.",
-        code: "TheShovel/blockAI.js",
-        banner: "TheShovel/thumbnail-blockAI.avif",
-        creator: "TheShovel",
-        creatorAlias: "TheShovel",
-        isGitHub: true,
-        unstable: true,
-        unstableReason: "The AI model can generate inaccurate output and broken syntax!",
-    },
-*/
     {
         name: "PenguinHook",
         description: "Send Webhook requests, that can be Discord or any type of webhook.",
@@ -548,28 +522,14 @@ export default [
         isGitHub: true,
         creatorAlias: "gaimerI17",
     },
-    /* these extensions are completely dead as of now
     {
-        name: "Online Captcha",
-        description: "Protect your project with simple, easy to use captcha implementation. Fully client-side, bypass-proof captcha solution!",
-        code: "NotHouse/OnlineCaptcha.js",
-        banner: "NotHouse/OnlineCaptcha-banner.avif",
-        creator: "enderhacker",
+        name: "Links & Barcodes",
+        description: "Blocks to open web links and generate scannable QR codes on the stage.",
+        code: "codemaster/links-and-barcodes.js",
+        banner: "codemaster/links-and-barcodes.png",
+        creator: "moosanaeempc-lgtm",
+        creatorAlias: "codemaster",
         isGitHub: true,
+        isUnsandboxed: true,
     },
-    {
-        name: "Better Storage",
-        description: "Like PenguinMod's Storage Extension, but with a couple more features, and faster servers.",
-        code: "Gen1x/better_storage.js",
-        banner: "Gen1x/betterstorage.avif",
-        creator: "G1nX",
-    },
-    {
-        name: "Mouth Washer",
-        description: "Includes many utilities related to cleaning bad words, swearing and profanity. Thought of as an extra layer of security for filtering messages.\n\n(ft. violet and jwklong)",
-        code: "Gen1x/mouth_washer.js",
-        banner: "Gen1x/mw-placeholder.avif",
-        creator: "G1nX",
-    },
-    */
 ];
diff --git a/static/extensions/codemaster/links-and-barcodes.js b/static/extensions/codemaster/links-and-barcodes.js
new file mode 100644
index 000000000..64a7a79b8
--- /dev/null
+++ b/static/extensions/codemaster/links-and-barcodes.js
@@ -0,0 +1,110 @@
+(function(Scratch) {
+  'use strict';
+
+  class BarcodeExtension {
+    constructor() {
+      this.activeBarcodes = [];
+      this.currentSize = 100;
+
+      if (Scratch.vm && Scratch.vm.runtime) {
+        Scratch.vm.runtime.on('PROJECT_START', () => this.deleteAllBarcodes());
+        Scratch.vm.runtime.on('PROJECT_STOP_ALL', () => this.deleteAllBarcodes());
+      }
+    }
+
+    getInfo() {
+      return {
+        id: 'moosanaeempcLinksAndBarcodes',
+        name: 'Links & Barcodes',
+        blocks: [
+          {
+            opcode: 'openLink',
+            blockType: Scratch.BlockType.COMMAND,
+            text: 'open link [URL]',
+            arguments: {
+              URL: { type: Scratch.ArgumentType.STRING, defaultValue: 'https://penguinmod.com' }
+            }
+          },
+          {
+            opcode: 'generateBarcode',
+            blockType: Scratch.BlockType.COMMAND,
+            text: 'generate barcode of link [URL] at x [X] y [Y]',
+            arguments: {
+              URL: { type: Scratch.ArgumentType.STRING, defaultValue: 'https://penguinmod.com' },
+              X: { type: Scratch.ArgumentType.NUMBER, defaultValue: 0 },
+              Y: { type: Scratch.ArgumentType.NUMBER, defaultValue: 0 }
+            }
+          },
+          {
+            opcode: 'setSize',
+            blockType: Scratch.BlockType.COMMAND,
+            text: 'set barcode size to [SIZE]',
+            arguments: {
+              SIZE: { type: Scratch.ArgumentType.NUMBER, defaultValue: 100, min: 5, max: 300 }
+            }
+          },
+          {
+            opcode: 'deleteAllBarcodes',
+            blockType: Scratch.BlockType.COMMAND,
+            text: 'delete all barcodes'
+          }
+        ]
+      };
+    }
+
+    _clampSize(size) {
+      return Math.min(Math.max(Number(size), 5), 300);
+    }
+
+    openLink(args) {
+      const url = args.URL;
+      if (Scratch.openWindow) {
+        Scratch.openWindow(url);
+      } else {
+        window.open(url, '_blank', 'noopener,noreferrer');
+      }
+    }
+
+    generateBarcode(args) {
+      const stageLayer = document.querySelector('.stage_stage_2SR8W') || 
+                         document.querySelector('[class*="stage_stage"]') || 
+                         document.body;
+
+      const img = document.createElement('img');
+      img.src = `https://api.qrserver.com/v1/create-qr-code/?data=${encodeURIComponent(args.URL)}`;
+      
+      img.style.position = 'absolute';
+      img.style.pointerEvents = 'auto';
+      img.style.zIndex = '10';
+      
+      const left = 240 + Number(args.X);
+      const top = 180 - Number(args.Y);
+
+      img.style.left = `${(left / 480) * 100}%`;
+      img.style.top = `${(top / 360) * 100}%`;
+      img.style.transform = 'translate(-50%, -50%)';
+      
+      const finalSize = this._clampSize(this.currentSize);
+      img.style.width = `${finalSize}px`;
+      img.style.height = 'auto';
+      
+      stageLayer.appendChild(img);
+      this.activeBarcodes.push(img);
+    }
+
+    setSize(args) {
+      this.currentSize = this._clampSize(args.SIZE);
+    }
+
+    deleteAllBarcodes() {
+      this.activeBarcodes.forEach(el => {
+        if (el && el.parentNode) {
+          el.remove();
+        }
+      });
+      this.activeBarcodes = [];
+    }
+  }
+
+  Scratch.extensions.register(new BarcodeExtension());
+})(Scratch);
diff --git a/static/images/codemaster/links-and-barcodes.png b/static/images/codemaster/links-and-barcodes.png
new file mode 100644
index 000000000..b6381b2b7
Binary files /dev/null and b/static/images/codemaster/links-and-barcodes.png differ