diff --git a/Libraries/LibC/byteswap.h b/Libraries/LibC/byteswap.h
new file mode 100644
index 0000000000..b3af26d439
--- /dev/null
+++ b/Libraries/LibC/byteswap.h
@@ -0,0 +1,11 @@
+#include <sys/cdefs.h>
+
+#pragma once
+
+__BEGIN_DECLS
+
+#define bswap_16(x) (__builtin_bswap16(x))
+#define bswap_32(x) (__builtin_bswap32(x))
+#define bswap_64(x) (__builtin_bswap64(x))
+
+__END_DECLS