diff --git a/React/Base/RCTBridgeModule.h b/React/Base/RCTBridgeModule.h
index 12f7803ea73108..dd6f61e235e279 100644
--- a/React/Base/RCTBridgeModule.h
+++ b/React/Base/RCTBridgeModule.h
@@ -73,12 +73,67 @@ typedef void (^RCTResponseSenderBlock)(NSArray *response);
  * { ... }
  */
 #define RCT_REMAP_METHOD(js_name, method) \
+  RCT_EXTERN_REMAP_METHOD(js_name, method) \
+  - (void)method
+
+/**
+ * Use this macro in a private Objective-C implementation file to automatically
+ * register an external module with the bridge when it loads. This allows you to
+ * register Swift or private Objective-C classes with the bridge.
+ *
+ * For example if one wanted to export a Swift class to the bridge:
+ *
+ * MyModule.swift:
+ *
+ *   @objc(MyModule) class MyModule: NSObject {
+ *
+ *     @objc func doSomething(string: String! withFoo a: Int, bar b: Int) { ... }
+ *
+ *   }
+ *
+ * MyModuleExport.m:
+ *
+ *   #import "RCTBridgeModule.h"
+ *
+ *   @interface RCT_EXTERN_MODULE(MyModule, NSObject)
+ *
+ *   RCT_EXTERN_METHOD(doSomething:(NSString *)string withFoo:(NSInteger)a bar:(NSInteger)b)
+ *
+ *   @end
+ *
+ * This will now expose MyModule and the method to JavaScript via
+ * `NativeModules.MyModule.doSomething`
+ */
+#define RCT_EXTERN_MODULE(objc_name, objc_supername) \
+  RCT_EXTERN_REMAP_MODULE(, objc_name, objc_supername)
+
+/**
+ * Similar to RCT_EXTERN_MODULE but allows setting a custom JavaScript name
+ */
+#define RCT_EXTERN_REMAP_MODULE(js_name, objc_name, objc_supername) \
+  objc_name : objc_supername \
+  @end \
+  @interface objc_name (RCTExternModule) <RCTBridgeModule> \
+  @end \
+  @implementation objc_name (RCTExternModule) \
+  RCT_EXPORT_MODULE(js_name)
+
+/**
+ * Use this macro in accordance with RCT_EXTERN_MODULE to export methods
+ * of an external module.
+ */
+#define RCT_EXTERN_METHOD(method) \
+  RCT_EXTERN_REMAP_METHOD(, method)
+
+/**
+ * Similar to RCT_EXTERN_REMAP_METHOD but allows setting a custom JavaScript name
+ */
+#define RCT_EXTERN_REMAP_METHOD(js_name, method) \
   - (void)__rct_export__##method { \
     __attribute__((used, section("__DATA,RCTExport"))) \
     __attribute__((__aligned__(1))) \
     static const char *__rct_export_entry__[] = { __func__, #method, #js_name }; \
-  } \
-  - (void)method
+  }
 
 /**
  * Deprecated, do not use.