diff --git a/src/Types.hh b/src/Types.hh
new file mode 100644
index 00000000..5d516c3c
--- /dev/null
+++ b/src/Types.hh
@@ -0,0 +1,36 @@
+#pragma once
+
+#include <phosg/Encoding.hh>
+#include <phosg/Hash.hh>
+#include <phosg/JSON.hh>
+#include <phosg/Random.hh>
+#include <phosg/Strings.hh>
+#include <phosg/Time.hh>
+
+using le_uint16_t = phosg::le_uint16_t;
+using le_int16_t = phosg::le_int16_t;
+using le_uint32_t = phosg::le_uint32_t;
+using le_int32_t = phosg::le_int32_t;
+using le_uint64_t = phosg::le_uint64_t;
+using le_int64_t = phosg::le_int64_t;
+using le_float = phosg::le_float;
+using le_double = phosg::le_double;
+using be_uint16_t = phosg::be_uint16_t;
+using be_int16_t = phosg::be_int16_t;
+using be_uint32_t = phosg::be_uint32_t;
+using be_int32_t = phosg::be_int32_t;
+using be_uint64_t = phosg::be_uint64_t;
+using be_int64_t = phosg::be_int64_t;
+using be_float = phosg::be_float;
+using be_double = phosg::be_double;
+
+template <bool BE>
+using U16T = typename std::conditional<BE, be_uint16_t, le_uint16_t>::type;
+template <bool BE>
+using S16T = typename std::conditional<BE, be_int16_t, le_int16_t>::type;
+template <bool BE>
+using U32T = typename std::conditional<BE, be_uint32_t, le_uint32_t>::type;
+template <bool BE>
+using S32T = typename std::conditional<BE, be_int32_t, le_int32_t>::type;
+template <bool BE>
+using F32T = typename std::conditional<BE, be_float, le_float>::type;