diff --git a/lib/cocoa/src/TBinary.swift b/lib/cocoa/src/TBinary.swift
new file mode 100644
index 0000000..c8a3660
--- /dev/null
+++ b/lib/cocoa/src/TBinary.swift
@@ -0,0 +1,122 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import Foundation
+
+
+public struct TBinary : TSerializable {
+  
+  public static var thriftType : TType { return .STRING }
+  
+  private var storage : NSData
+  
+  public init() {
+    self.storage = NSData()
+  }
+  
+  public init(contentsOfFile file: String, options: NSDataReadingOptions = []) throws {
+    self.storage = try NSData(contentsOfFile: file, options: options)
+  }
+  
+  public init(contentsOfURL URL: NSURL, options: NSDataReadingOptions = []) throws {
+    self.storage = try NSData(contentsOfURL: URL, options: options)
+  }
+  
+  public init?(base64EncodedData base64Data: NSData, options: NSDataBase64DecodingOptions = []) {
+    guard let storage = NSData(base64EncodedData: base64Data, options: options) else {
+      return nil
+    }
+    self.storage = storage
+  }
+  
+  public init(data: NSData) {
+    self.storage = data
+  }
+  
+  public var length : Int {
+    return storage.length
+  }
+  
+  public var hashValue : Int {
+    return storage.hashValue
+  }
+  
+  public var bytes : UnsafePointer<Void> {
+    return storage.bytes
+  }
+  
+  public func getBytes(buffer: UnsafeMutablePointer<Void>, length: Int) {
+    storage.getBytes(buffer, length: length)
+  }
+  
+  public func getBytes(buffer: UnsafeMutablePointer<Void>, range: Range<Int>) {
+    storage.getBytes(buffer, range: NSRange(range))
+  }
+  
+  public func subBinaryWithRange(range: Range<Int>) -> TBinary {
+    return TBinary(data: storage.subdataWithRange(NSRange(range)))
+  }
+  
+  public func writeToFile(path: String, options: NSDataWritingOptions = []) throws {
+    try storage.writeToFile(path, options: options)
+  }
+  
+  public func writeToURL(url: NSURL, options: NSDataWritingOptions = []) throws {
+    try storage.writeToURL(url, options: options)
+  }
+  
+  public func rangeOfData(dataToFind data: NSData, options: NSDataSearchOptions, range: Range<Int>) -> Range<Int>? {
+    return storage.rangeOfData(data, options: options, range: NSRange(range)).toRange()
+  }
+  
+  public func enumerateByteRangesUsingBlock(block: (UnsafePointer<Void>, Range<Int>, inout Bool) -> Void) {
+    storage.enumerateByteRangesUsingBlock { bytes, range, stop in
+      var stopTmp = Bool(stop.memory)
+      block(bytes, range.toRange()!, &stopTmp)
+      stop.memory = ObjCBool(stopTmp)
+    }
+  }
+  
+  public static func readValueFromProtocol(proto: TProtocol) throws -> TBinary {
+    var data : NSData?
+    try proto.readBinary(&data)
+    return TBinary(data: data!)
+  }
+  
+  public static func writeValue(value: TBinary, toProtocol proto: TProtocol) throws {
+    try proto.writeBinary(value.storage)
+  }
+  
+}
+
+extension TBinary : CustomStringConvertible, CustomDebugStringConvertible {
+  
+  public var description : String {
+    return storage.description
+  }
+  
+  public var debugDescription : String {
+    return storage.debugDescription
+  }
+  
+}
+
+public func ==(lhs: TBinary, rhs: TBinary) -> Bool {
+  return lhs.storage == rhs.storage
+}