diff --git a/lib/hs/Thrift.cabal b/lib/hs/Thrift.cabal
index f0a09aa..6f6a150 100644
--- a/lib/hs/Thrift.cabal
+++ b/lib/hs/Thrift.cabal
@@ -40,7 +40,7 @@
   Hs-Source-Dirs:
     src
   Build-Depends:
-    base >= 4, base < 5, containers, ghc-prim, attoparsec, binary, bytestring >= 0.10, hashable, HTTP, text, unordered-containers, vector, QuickCheck, split
+    base >= 4, base < 5, containers, ghc-prim, attoparsec, binary, bytestring >= 0.10, base64-bytestring, hashable, HTTP, text, unordered-containers, vector, QuickCheck, split
   if flag(network-uri)
      build-depends: network-uri >= 2.6, network >= 2.6
   else
diff --git a/lib/hs/src/Thrift/Protocol.hs b/lib/hs/src/Thrift/Protocol.hs
index 8467f40..ed779a2 100644
--- a/lib/hs/src/Thrift/Protocol.hs
+++ b/lib/hs/src/Thrift/Protocol.hs
@@ -102,6 +102,7 @@
   TI32{} -> T_I32
   TI64{} -> T_I64
   TString{} -> T_STRING
+  TBinary{} -> T_BINARY
   TDouble{} -> T_DOUBLE
 
 runParser :: (Protocol p, Transport t, Show a) => p t -> Parser a -> IO a
diff --git a/lib/hs/src/Thrift/Protocol/Binary.hs b/lib/hs/src/Thrift/Protocol/Binary.hs
index ac78483..2d35305 100644
--- a/lib/hs/src/Thrift/Protocol/Binary.hs
+++ b/lib/hs/src/Thrift/Protocol/Binary.hs
@@ -104,6 +104,7 @@
 buildBinaryValue (TString s) = int32BE len <> lazyByteString s
   where
     len :: Int32 = fromIntegral (LBS.length s)
+buildBinaryValue (TBinary s) = buildBinaryValue (TString s)
 
 buildBinaryStruct :: Map.HashMap Int16 (LT.Text, ThriftVal) -> Builder
 buildBinaryStruct = Map.foldrWithKey combine mempty
@@ -121,7 +122,7 @@
 
 -- | Reading Functions
 parseBinaryValue :: ThriftType -> P.Parser ThriftVal
-parseBinaryValue (T_STRUCT _) = TStruct <$> parseBinaryStruct
+parseBinaryValue (T_STRUCT tmap) = TStruct <$> parseBinaryStruct tmap
 parseBinaryValue (T_MAP _ _) = do
   kt <- parseType
   vt <- parseType
@@ -141,18 +142,23 @@
 parseBinaryValue T_I32 = TI32 . Binary.decode . LBS.fromStrict <$> P.take 4
 parseBinaryValue T_I64 = TI64 . Binary.decode . LBS.fromStrict <$> P.take 8
 parseBinaryValue T_DOUBLE = TDouble . bsToDouble <$> P.take 8
-parseBinaryValue T_STRING = do
-  i :: Int32  <- Binary.decode . LBS.fromStrict <$> P.take 4
-  TString . LBS.fromStrict <$> P.take (fromIntegral i)
+parseBinaryValue T_STRING = parseBinaryString TString
+parseBinaryValue T_BINARY = parseBinaryString TBinary
 parseBinaryValue ty = error $ "Cannot read value of type " ++ show ty
 
-parseBinaryStruct :: P.Parser (Map.HashMap Int16 (LT.Text, ThriftVal))
-parseBinaryStruct = Map.fromList <$> P.manyTill parseField (matchType T_STOP)
+parseBinaryString ty = do
+  i :: Int32  <- Binary.decode . LBS.fromStrict <$> P.take 4
+  ty . LBS.fromStrict <$> P.take (fromIntegral i)
+
+parseBinaryStruct :: TypeMap -> P.Parser (Map.HashMap Int16 (LT.Text, ThriftVal))
+parseBinaryStruct tmap = Map.fromList <$> P.manyTill parseField (matchType T_STOP)
   where
     parseField = do
       t <- parseType
       n <- Binary.decode . LBS.fromStrict <$> P.take 2
-      v <- parseBinaryValue t
+      v <- case (t, Map.lookup n tmap) of
+             (T_STRING, Just (_, T_BINARY)) -> parseBinaryValue T_BINARY
+             _ -> parseBinaryValue t
       return (n, ("", v))
 
 parseBinaryMap :: ThriftType -> ThriftType -> Int32 -> P.Parser [(ThriftVal, ThriftVal)]
diff --git a/lib/hs/src/Thrift/Protocol/Compact.hs b/lib/hs/src/Thrift/Protocol/Compact.hs
index 759466b..07113df 100644
--- a/lib/hs/src/Thrift/Protocol/Compact.hs
+++ b/lib/hs/src/Thrift/Protocol/Compact.hs
@@ -124,6 +124,7 @@
 buildCompactValue (TString s) = buildVarint len <> lazyByteString s
   where
     len = fromIntegral (LBS.length s) :: Word32
+buildCompactValue (TBinary s) = buildCompactValue (TString s)
 
 buildCompactStruct :: Map.HashMap Int16 (LT.Text, ThriftVal) -> Builder
 buildCompactStruct = flip (loop 0) mempty . Map.toList
@@ -146,7 +147,7 @@
 
 -- | Reading Functions
 parseCompactValue :: ThriftType -> Parser ThriftVal
-parseCompactValue (T_STRUCT _) = TStruct <$> parseCompactStruct
+parseCompactValue (T_STRUCT tmap) = TStruct <$> parseCompactStruct tmap
 parseCompactValue (T_MAP kt' vt') = do
   n <- parseVarint id
   if n == 0
@@ -164,13 +165,16 @@
 parseCompactValue T_I32 = TI32 <$> parseVarint zigZagToI32
 parseCompactValue T_I64 = TI64 <$> parseVarint zigZagToI64
 parseCompactValue T_DOUBLE = TDouble . bsToDoubleLE <$> P.take 8
-parseCompactValue T_STRING = do
-  len :: Word32 <- parseVarint id
-  TString . LBS.fromStrict <$> P.take (fromIntegral len)
+parseCompactValue T_STRING = parseCompactString TString
+parseCompactValue T_BINARY = parseCompactString TBinary
 parseCompactValue ty = error $ "Cannot read value of type " ++ show ty
 
-parseCompactStruct :: Parser (Map.HashMap Int16 (LT.Text, ThriftVal))
-parseCompactStruct = Map.fromList <$> parseFields 0
+parseCompactString ty = do
+  len :: Word32 <- parseVarint id
+  ty . LBS.fromStrict <$> P.take (fromIntegral len)
+
+parseCompactStruct :: TypeMap -> Parser (Map.HashMap Int16 (LT.Text, ThriftVal))
+parseCompactStruct tmap = Map.fromList <$> parseFields 0
   where
     parseFields :: Int16 -> Parser [(Int16, (LT.Text, ThriftVal))]
     parseFields lastId = do
@@ -185,7 +189,9 @@
                  else parseVarint zigZagToI16
           val <- if ty == T_BOOL
                  then return (TBool $ (w .&. 0x0F) == 0x01)
-                 else parseCompactValue ty
+                 else case (ty, Map.lookup fid tmap) of
+                        (T_STRING, Just (_, T_BINARY)) -> parseCompactValue T_BINARY
+                        _ -> parseCompactValue ty
           ((fid, (LT.empty, val)) : ) <$> parseFields fid
 
 parseCompactMap :: ThriftType -> ThriftType -> Int32 ->
@@ -255,6 +261,7 @@
   T_I64 -> 0x06
   T_DOUBLE -> 0x07
   T_STRING -> 0x08
+  T_BINARY -> 0x08
   T_LIST{} -> 0x09
   T_SET{} -> 0x0A
   T_MAP{} -> 0x0B
@@ -271,6 +278,7 @@
   TI64 _ -> 0x06
   TDouble _ -> 0x07
   TString _ -> 0x08
+  TBinary _ -> 0x08
   TList{} -> 0x09
   TSet{} -> 0x0A
   TMap{} -> 0x0B
diff --git a/lib/hs/src/Thrift/Protocol/JSON.hs b/lib/hs/src/Thrift/Protocol/JSON.hs
index ea6bcf3..7f619e8 100644
--- a/lib/hs/src/Thrift/Protocol/JSON.hs
+++ b/lib/hs/src/Thrift/Protocol/JSON.hs
@@ -33,6 +33,8 @@
 import Data.Attoparsec.ByteString as P
 import Data.Attoparsec.ByteString.Char8 as PC
 import Data.Attoparsec.ByteString.Lazy as LP
+import Data.ByteString.Base64.Lazy as B64C
+import Data.ByteString.Base64 as B64
 import Data.ByteString.Lazy.Builder as B
 import Data.ByteString.Internal (c2w, w2c)
 import Data.Functor
@@ -113,6 +115,7 @@
 buildJSONValue (TI64 i) = buildShowable i
 buildJSONValue (TDouble d) = buildShowable d
 buildJSONValue (TString s) = B.char8 '\"' <> escape s <> B.char8 '\"'
+buildJSONValue (TBinary s) = B.char8 '\"' <> (B.lazyByteString . B64C.encode $ s) <> B.char8 '\"'
 
 buildJSONStruct :: Map.HashMap Int16 (LT.Text, ThriftVal) -> Builder
 buildJSONStruct = mconcat . intersperse (B.char8 ',') . Map.foldrWithKey buildField []
@@ -168,6 +171,7 @@
 parseJSONValue T_I64 = TI64 <$> signed decimal
 parseJSONValue T_DOUBLE = TDouble <$> double
 parseJSONValue T_STRING = TString <$> escapedString
+parseJSONValue T_BINARY = TBinary <$> base64String
 parseJSONValue T_STOP = fail "parseJSONValue: cannot parse type T_STOP"
 parseJSONValue T_VOID = fail "parseJSONValue: cannot parse type T_VOID"
 
@@ -182,6 +186,7 @@
                   , T_I64
                   , T_DOUBLE
                   , T_STRING
+                  , T_BINARY
                   ]
   where
     skipBetween :: Char -> Char -> Parser ()
@@ -208,6 +213,7 @@
   lexeme (PC.char8 ',')
   where
     parseJSONKey T_STRING = parseJSONValue T_STRING
+    parseJSONKey T_BINARY = parseJSONValue T_BINARY
     parseJSONKey kt = PC.char8 '"' *> parseJSONValue kt <* PC.char8 '"'
 
 parseJSONList :: ThriftType -> Parser [ThriftVal]
@@ -218,6 +224,20 @@
                 (LBS.pack <$> P.many' (escapedChar <|> notChar8 '"')) <*
                 PC.char8 '"'
 
+base64String :: Parser LBS.ByteString
+base64String = PC.char8 '"' *>
+               (decodeBase64 . LBSC.pack <$> P.many' (PC.notChar '"')) <*
+               PC.char8 '"'
+               where
+                 decodeBase64 b =
+                   let padded = case (LBS.length b) `mod` 4 of
+                                  2 -> LBS.append b "=="
+                                  3 -> LBS.append b "="
+                                  _ -> b in
+                   case B64C.decode padded of
+                     Right s -> s
+                     Left x -> error x
+
 escapedChar :: Parser Word8
 escapedChar = PC.char8 '\\' *> (c2w <$> choice
                                 [ '\SOH' <$ P.string "u0001"
@@ -327,5 +347,6 @@
   T_I64      -> "i64"
   T_DOUBLE   -> "dbl"
   T_STRING   -> "str"
+  T_BINARY   -> "str"
   _ -> error "Unrecognized Type"
 
diff --git a/lib/hs/src/Thrift/Types.hs b/lib/hs/src/Thrift/Types.hs
index b90c42c..8719e72 100644
--- a/lib/hs/src/Thrift/Types.hs
+++ b/lib/hs/src/Thrift/Types.hs
@@ -53,6 +53,7 @@
                | TI32 Int32
                | TI64 Int64
                | TString LBS.ByteString
+               | TBinary LBS.ByteString
                | TDouble Double
                  deriving (Eq, Show)
 
@@ -70,6 +71,7 @@
     | T_I32
     | T_I64
     | T_STRING
+    | T_BINARY
     | T_STRUCT TypeMap
     | T_MAP ThriftType ThriftType
     | T_SET ThriftType
@@ -89,6 +91,7 @@
     fromEnum T_I32        = 8
     fromEnum T_I64        = 10
     fromEnum T_STRING     = 11
+    fromEnum T_BINARY     = 11
     fromEnum (T_STRUCT _) = 12
     fromEnum (T_MAP _ _)  = 13
     fromEnum (T_SET _)    = 14
@@ -103,6 +106,7 @@
     toEnum 8  = T_I32
     toEnum 10 = T_I64
     toEnum 11 = T_STRING
+    -- toEnum 11 = T_BINARY
     toEnum 12 = T_STRUCT Map.empty
     toEnum 13 = T_MAP T_VOID T_VOID
     toEnum 14 = T_SET T_VOID
diff --git a/lib/hs/test/BinarySpec.hs b/lib/hs/test/BinarySpec.hs
index 5039610..d692fab 100644
--- a/lib/hs/test/BinarySpec.hs
+++ b/lib/hs/test/BinarySpec.hs
@@ -66,3 +66,26 @@
         writeVal proto (TString val)
         bin <- tRead trans 7
         (LBS.unpack bin) `shouldBe` [0, 0, 0, 3, 97, 97, 97]
+
+    describe "binary" $ do
+      it "writes" $ do
+        trans <- openMemoryBuffer
+        let proto = BinaryProtocol trans
+        writeVal proto (TBinary $ LBS.pack [42, 43, 44])
+        bin <- tRead trans 100
+        (LBS.unpack bin) `shouldBe` [0, 0, 0, 3, 42, 43, 44]
+
+      it "reads" $ do
+        trans <- openMemoryBuffer
+        let proto = BinaryProtocol trans
+        tWrite trans $ LBS.pack [0, 0, 0, 3, 42, 43, 44]
+        val <- readVal proto (T_BINARY)
+        val `shouldBe` (TBinary $ LBS.pack [42, 43, 44])
+
+      prop "round trip" $ \val -> do
+        trans <- openMemoryBuffer
+        let proto = BinaryProtocol trans
+        writeVal proto (TBinary $ LBS.pack val)
+        val2 <- readVal proto (T_BINARY)
+        val2 `shouldBe` (TBinary $ LBS.pack val)
+
diff --git a/lib/hs/test/CompactSpec.hs b/lib/hs/test/CompactSpec.hs
index 22708b4..5540e7b 100644
--- a/lib/hs/test/CompactSpec.hs
+++ b/lib/hs/test/CompactSpec.hs
@@ -56,3 +56,26 @@
         writeVal proto $ TDouble val
         val2 <- readVal proto T_DOUBLE
         val2 `shouldBe` (TDouble val)
+
+    describe "binary" $ do
+      it "writes" $ do
+        trans <- openMemoryBuffer
+        let proto = CompactProtocol trans
+        writeVal proto (TBinary $ LBS.pack [42, 43, 44])
+        bin <- tRead trans 100
+        (LBS.unpack bin) `shouldBe` [3, 42, 43, 44]
+
+      it "reads" $ do
+        trans <- openMemoryBuffer
+        let proto = CompactProtocol trans
+        tWrite trans $ LBS.pack [3, 42, 43, 44]
+        val <- readVal proto (T_BINARY)
+        val `shouldBe` (TBinary $ LBS.pack [42, 43, 44])
+
+      prop "round trip" $ \val -> do
+        trans <- openMemoryBuffer
+        let proto = CompactProtocol trans
+        writeVal proto (TBinary $ LBS.pack val)
+        val2 <- readVal proto (T_BINARY)
+        val2 `shouldBe` (TBinary $ LBS.pack val)
+
diff --git a/lib/hs/test/JSONSpec.hs b/lib/hs/test/JSONSpec.hs
index 079be02..022c826 100644
--- a/lib/hs/test/JSONSpec.hs
+++ b/lib/hs/test/JSONSpec.hs
@@ -22,6 +22,7 @@
 import Test.Hspec
 import Test.Hspec.QuickCheck (prop)
 
+import qualified Data.ByteString.Lazy as LBS
 import qualified Data.ByteString.Lazy.Char8 as C
 
 import Thrift.Types
@@ -82,6 +83,35 @@
         val2 <- readVal proto (T_STRING)
         val2 `shouldBe` (TString $ C.pack val)
 
+    describe "binary" $ do
+      it "writes with padding" $ do
+        trans <- openMemoryBuffer
+        let proto = JSONProtocol trans
+        writeVal proto (TBinary $ LBS.pack [1])
+        bin <- tRead trans 100
+        (C.unpack bin) `shouldBe` "\"AQ==\""
+
+      it "reads with padding" $ do
+        trans <- openMemoryBuffer
+        let proto = JSONProtocol trans
+        tWrite trans $ C.pack "\"AQ==\""
+        val <- readVal proto (T_BINARY)
+        val `shouldBe` (TBinary $ LBS.pack [1])
+
+      it "reads without padding" $ do
+        trans <- openMemoryBuffer
+        let proto = JSONProtocol trans
+        tWrite trans $ C.pack "\"AQ\""
+        val <- readVal proto (T_BINARY)
+        val `shouldBe` (TBinary $ LBS.pack [1])
+
+      prop "round trip" $ \val -> do
+        trans <- openMemoryBuffer
+        let proto = JSONProtocol trans
+        writeVal proto (TBinary $ LBS.pack val)
+        val2 <- readVal proto (T_BINARY)
+        val2 `shouldBe` (TBinary $ LBS.pack val)
+
     describe "list" $ do
       it "writes empty list" $ do
         trans <- openMemoryBuffer