diff --git a/types/simple-query-string/index.d.ts b/types/simple-query-string/index.d.ts
new file mode 100644
index 0000000000..2d7a01cf76
--- /dev/null
+++ b/types/simple-query-string/index.d.ts
@@ -0,0 +1,30 @@
+// Type definitions for simple-query-string 1.3
+// Project: https://github.com/khalidsalomao/simple-query-string#readme
+// Definitions by: Ciarán Ingle <https://github.com/inglec-arista>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 3.6
+
+declare const qs: {
+    version: string;
+
+    parse: (
+        str: string,
+        delimeter?: string,
+        eq?: string,
+    ) => {
+        [key: string]: string | string[] | null;
+    };
+
+    stringify: <T>(
+        obj: {
+            /* tslint:disable-next-line ban-types */
+            [key: string]: T extends Function
+                ? never
+                : T extends string | number | boolean | object | null ? T : never;
+        },
+        delimeter?: string,
+        eq?: string,
+    ) => string;
+};
+
+export = qs;
diff --git a/types/simple-query-string/simple-query-string-tests.ts b/types/simple-query-string/simple-query-string-tests.ts
new file mode 100644
index 0000000000..217a681963
--- /dev/null
+++ b/types/simple-query-string/simple-query-string-tests.ts
@@ -0,0 +1,28 @@
+import qs = require('simple-query-string');
+
+// Omit optional parameters
+qs.parse('http://example.org/test/?key=val&param=1');
+
+// Omit last optional parameter
+qs.parse('http://example.org/test/?key=val&param=1', '&');
+
+// Specify all parameters
+qs.parse('http://example.org/test/?key=val&param=1', '&', '=');
+
+// Omit optional parameters
+qs.stringify({});
+qs.stringify({
+    param1: 'string',
+    param2: 123,
+    param3: true,
+    param4: ['element1', 'element2'],
+    param5: { key1: 'value1', key2: 'value2' },
+    param6: new RegExp('regex'),
+    param7: null,
+});
+
+// Omit last optional parameter
+qs.stringify({}, '&');
+
+// Specify all parameters
+qs.stringify({}, '&', '=');
diff --git a/types/simple-query-string/tsconfig.json b/types/simple-query-string/tsconfig.json
new file mode 100644
index 0000000000..9dba269bf2
--- /dev/null
+++ b/types/simple-query-string/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "simple-query-string-tests.ts"
+    ]
+}
diff --git a/types/simple-query-string/tslint.json b/types/simple-query-string/tslint.json
new file mode 100644
index 0000000000..f93cf8562a
--- /dev/null
+++ b/types/simple-query-string/tslint.json
@@ -0,0 +1,3 @@
+{
+    "extends": "dtslint/dt.json"
+}