diff --git a/types/browser-lang/browser-lang-tests.ts b/types/browser-lang/browser-lang-tests.ts
new file mode 100644
index 0000000000..e81a006fcb
--- /dev/null
+++ b/types/browser-lang/browser-lang-tests.ts
@@ -0,0 +1,7 @@
+import browserLang from 'browser-lang';
+
+const Lang = browserLang({ languages: ['en', 'ko', 'ja'], fallback: 'en' });
+const SystemLang = browserLang();
+
+console.log("Lang:", Lang);
+console.log("SystemLang:", SystemLang);
diff --git a/types/browser-lang/index.d.ts b/types/browser-lang/index.d.ts
new file mode 100644
index 0000000000..e04edf0a05
--- /dev/null
+++ b/types/browser-lang/index.d.ts
@@ -0,0 +1,13 @@
+// Type definitions for browser-lang 0.1
+// Project: https://github.com/InJaEE/DefinitelyTyped
+// Definitions by: InJaEE <https://github.com/InJaEE>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export interface BrowserOption {
+    languages: string[];
+    fallback: string;
+}
+
+declare function browserLang(option?: BrowserOption): string;
+
+export default browserLang;
diff --git a/types/browser-lang/tsconfig.json b/types/browser-lang/tsconfig.json
new file mode 100644
index 0000000000..4ce3e96030
--- /dev/null
+++ b/types/browser-lang/tsconfig.json
@@ -0,0 +1,21 @@
+{
+  "files": [
+    "index.d.ts",
+    "browser-lang-tests.ts"
+  ],
+  "compilerOptions": {
+    "module": "commonjs",
+    "lib": ["es6", "dom"],
+    "noImplicitAny": true,
+    "noImplicitThis": true,
+    "strictFunctionTypes": true,
+    "strictNullChecks": true,
+    "noEmit": true,
+    "forceConsistentCasingInFileNames": true,
+    "types": [],
+    "baseUrl": "../",
+    "typeRoots": [
+      "../"
+    ]
+  }
+}
diff --git a/types/browser-lang/tslint.json b/types/browser-lang/tslint.json
new file mode 100644
index 0000000000..f93cf8562a
--- /dev/null
+++ b/types/browser-lang/tslint.json
@@ -0,0 +1,3 @@
+{
+    "extends": "dtslint/dt.json"
+}