diff --git a/range-parser/index.d.ts b/range-parser/index.d.ts
new file mode 100644
index 0000000000..e90f448e11
--- /dev/null
+++ b/range-parser/index.d.ts
@@ -0,0 +1,25 @@
+// Type definitions for range-parser 1.2
+// Project: https://github.com/jshttp/range-parser
+// Definitions by: Tomek Łaziuk <https://github.com/tlaziuk>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare function RangeParser(size: number, str: string, options?: RangeParser.Options): RangeParser.Result | RangeParser.Ranges;
+
+declare namespace RangeParser {
+    export interface Ranges extends Array<Range> {
+        type: string;
+    }
+    export interface Range {
+        start: number;
+        end: number;
+    }
+    export interface Options {
+        combine?: boolean;
+    }
+    export const enum Result {
+        invaild = -2,
+        unsatisifiable = -1,
+    }
+}
+
+export = RangeParser;
diff --git a/range-parser/range-parser-tests.ts b/range-parser/range-parser-tests.ts
new file mode 100644
index 0000000000..77dab456c1
--- /dev/null
+++ b/range-parser/range-parser-tests.ts
@@ -0,0 +1,11 @@
+import * as RangeParser from 'range-parser';
+
+console.assert(RangeParser(200, `malformed`) === RangeParser.Result.invaild);
+console.assert(RangeParser(200, `bytes=500-20`) === RangeParser.Result.unsatisifiable);
+
+const range = RangeParser(1000, `bytes=0-499`);
+
+if (typeof range !== 'number') {
+    console.assert(range.type === `bytes`);
+    console.assert(range.length === 1);
+}
diff --git a/range-parser/tsconfig.json b/range-parser/tsconfig.json
new file mode 100644
index 0000000000..7c7f4ffd03
--- /dev/null
+++ b/range-parser/tsconfig.json
@@ -0,0 +1,20 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "target": "es6",
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "range-parser-tests.ts"
+    ]
+}
diff --git a/range-parser/tslint.json b/range-parser/tslint.json
new file mode 100644
index 0000000000..377cc837d4
--- /dev/null
+++ b/range-parser/tslint.json
@@ -0,0 +1 @@
+{ "extends": "../tslint.json" }