diff --git a/build.ts b/build.ts
index 94c19a9..d87bfe7 100644
--- a/build.ts
+++ b/build.ts
@@ -14,7 +14,7 @@ const entrypoints = [
 	"./src/trim.ts",
 	"./src/trim-end.ts",
 	"./src/trim-start.ts",
-
+	"./src/random-case.ts",
 	"./src/uis/truncate.ts",
 	"./src/uis/pad.ts",
 ];
diff --git a/package.json b/package.json
index 31a0e9b..5bf9e96 100644
--- a/package.json
+++ b/package.json
@@ -56,6 +56,11 @@
         "main": "dist/to-upper.js",
         "cmds": []
       },
+      {
+        "name": "Convert clipboard text to RaNDoM caSE",
+        "main": "dist/random-case.js",
+        "cmds": []
+      },
       {
         "name": "Trim the clipboard text",
         "main": "dist/trim.js",
diff --git a/src/random-case.ts b/src/random-case.ts
new file mode 100644
index 0000000..b3e1f75
--- /dev/null
+++ b/src/random-case.ts
@@ -0,0 +1,14 @@
+import {expose} from "@kksh/api/headless";
+import {BaseExt} from "./base";
+
+class RandomCaseExt extends BaseExt {
+	constructor() {
+		super(string => {
+			return string.split("").map(char => {
+				return Math.random() > 0.5 ? char.toUpperCase() : char.toLowerCase();
+			}).join("");
+		});
+	}
+}
+
+expose(new RandomCaseExt())