diff --git a/types/bytewise/bytewise-tests.ts b/types/bytewise/bytewise-tests.ts
new file mode 100644
index 0000000000..2641d4f785
--- /dev/null
+++ b/types/bytewise/bytewise-tests.ts
@@ -0,0 +1,10 @@
+import bytewise = require('bytewise');
+
+// $ExpectType Buffer
+bytewise.encode([1, 2, 3]);
+
+// $ExpectType any
+bytewise.decode(bytewise.encode([1, 2 , 3]));
+
+// $ExpectType Buffer
+bytewise.encode(bytewise.sorts.array.bound.lower(['123', -1, 0x123, Buffer.from('test')]));
diff --git a/types/bytewise/index.d.ts b/types/bytewise/index.d.ts
new file mode 100644
index 0000000000..c284ebee43
--- /dev/null
+++ b/types/bytewise/index.d.ts
@@ -0,0 +1,16 @@
+// Type definitions for bytewise 1.1
+// Project: https://github.com/deanlandolt/bytewise
+// Definitions by: Daniel Byrne <https://github.com/danwbyrne>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.2
+
+/// <reference types= "node" />
+
+interface Bytewise {
+    encode: (value: any) => Buffer;
+    decode: (value: Buffer) => any;
+    [k: string]: any;
+}
+
+declare const bytewise: Bytewise;
+export = bytewise;
diff --git a/types/bytewise/tsconfig.json b/types/bytewise/tsconfig.json
new file mode 100644
index 0000000000..acd527c7d2
--- /dev/null
+++ b/types/bytewise/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "bytewise-tests.ts"
+    ]
+}
diff --git a/types/bytewise/tslint.json b/types/bytewise/tslint.json
new file mode 100644
index 0000000000..f93cf8562a
--- /dev/null
+++ b/types/bytewise/tslint.json
@@ -0,0 +1,3 @@
+{
+    "extends": "dtslint/dt.json"
+}