diff --git a/React/Base/RCTJavaScriptLoader.h b/React/Base/RCTJavaScriptLoader.h
index 774d79410..1768e54ce 100755
--- a/React/Base/RCTJavaScriptLoader.h
+++ b/React/Base/RCTJavaScriptLoader.h
@@ -52,6 +52,14 @@ typedef union {
  */
 RCT_EXTERN RCTScriptTag RCTParseTypeFromHeader(RCTBundleHeader header);
 
+/**
+ * RCTStringForScriptTag
+ *
+ * Convert an `RCTScriptTag` enum into a string, useful for emitting in errors
+ * and diagnostic messages.
+ */
+RCT_EXTERN NSString *RCTStringForScriptTag(RCTScriptTag tag);
+
 extern NSString *const RCTJavaScriptLoaderErrorDomain;
 
 NS_ENUM(NSInteger) {
diff --git a/React/Base/RCTJavaScriptLoader.m b/React/Base/RCTJavaScriptLoader.m
index fe9389c67..306677a43 100755
--- a/React/Base/RCTJavaScriptLoader.m
+++ b/React/Base/RCTJavaScriptLoader.m
@@ -37,6 +37,18 @@ RCTScriptTag RCTParseTypeFromHeader(RCTBundleHeader header)
   return RCTScriptString;
 }
 
+NSString *RCTStringForScriptTag(RCTScriptTag tag)
+{
+  switch (tag) {
+    case RCTScriptString:
+      return @"String";
+    case RCTScriptRAMBundle:
+      return @"RAM Bundle";
+    case RCTScriptBCBundle:
+      return @"BC Bundle";
+  }
+}
+
 @implementation RCTLoadingProgress
 
 - (NSString *)description