diff --git a/src/index.tsx b/src/index.tsx
index f5654591a..96582ba82 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -10,6 +10,7 @@
 export {default as styled, keyframes} from 'react-emotion';
 export * from './ui/index';
 export {getStringFromErrorLike, textContent} from './utils/index';
+export * from './utils/jsonTypes';
 export {default as GK} from './fb-stubs/GK';
 export {default as createPaste} from './fb-stubs/createPaste';
 export {internGraphPOSTAPIRequest, graphQLQuery} from './fb-stubs/user';
diff --git a/src/utils/jsonTypes.tsx b/src/utils/jsonTypes.tsx
new file mode 100644
index 000000000..e3c383b26
--- /dev/null
+++ b/src/utils/jsonTypes.tsx
@@ -0,0 +1,16 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+export type JSON = JSONPrimitive | JSONArray | JSONObject;
+
+export type JSONPrimitive = null | boolean | number | string;
+
+export type JSONArray = JSON[];
+
+export type JSONObject = {[key: string]: JSON};