diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,20 @@
+Copyright (c) 2015 tattsun
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/Setup.hs b/Setup.hs
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--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/conlogger.cabal b/conlogger.cabal
new file mode 100644
--- /dev/null
+++ b/conlogger.cabal
@@ -0,0 +1,34 @@
+-- Initial conlogger.cabal generated by cabal init.  For further
+-- documentation, see http://haskell.org/cabal/users-guide/
+
+name:                conlogger
+version:             0.1.0.0
+synopsis:            A logger for a concurrent program.
+-- description:
+license:             MIT
+license-file:        LICENSE
+author:              tattsun
+maintainer:          t.t.mc1192.sf@gmail.com
+-- copyright:
+category:            Concurrency
+build-type:          Simple
+-- extra-source-files:
+cabal-version:       >=1.10
+
+library
+  exposed-modules:     Control.Concurrent.ConLogger
+  -- other-modules:
+  -- other-extensions:
+  ghc-options:         -O2 -Wall
+  build-depends:       base >=4.7 && <4.8
+                     , text >= 1.1.0.0
+  hs-source-dirs:      src
+  default-language:    Haskell2010
+
+executable "example"
+  build-depends:       base >= 4.7 && <4.8
+                     , conlogger == 0.1.0.0
+                     , text >= 1.1.0.0
+  hs-source-dirs:      examples
+  main-is:             Main.hs
+  default-language:    Haskell2010
diff --git a/examples/Main.hs b/examples/Main.hs
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--- /dev/null
+++ b/examples/Main.hs
@@ -0,0 +1,16 @@
+{-# LANGUAGE OverloadedStrings #-}
+module Main where
+
+import           Control.Concurrent
+import qualified Control.Concurrent.ConLogger as Log
+import           Control.Monad
+import qualified Data.Text                    as T
+
+main :: IO ()
+main = do
+  logger <- Log.new
+  replicateM_ 100 (thread logger)
+  Log.put logger "Main"
+
+thread :: Log.ConLogger -> IO ()
+thread logger = replicateM_ 50 (Log.put logger "Thread")
diff --git a/src/Control/Concurrent/ConLogger.hs b/src/Control/Concurrent/ConLogger.hs
new file mode 100644
--- /dev/null
+++ b/src/Control/Concurrent/ConLogger.hs
@@ -0,0 +1,32 @@
+module Control.Concurrent.ConLogger
+       ( ConLogger
+       , new
+       , put
+       ) where
+
+import           Control.Applicative
+import           Control.Concurrent      (forkIO)
+import           Control.Concurrent.Chan (Chan, newChan, readChan, writeChan)
+import           Control.Monad           (void)
+import qualified Data.Text               as T (Text)
+import qualified Data.Text.IO            as T (putStrLn)
+import           Prelude                 hiding (log)
+
+newtype ConLogger = ConLogger { conLogger :: Chan T.Text }
+
+new :: IO ConLogger
+new = do
+  ch <- ConLogger <$> newChan
+  void $ forkIO (runner ch)
+  return ch
+
+put :: ConLogger -> T.Text -> IO ()
+put cl = writeChan (conLogger cl)
+
+runner :: ConLogger -> IO ()
+runner cl = do
+  log <- readChan chan
+  T.putStrLn log
+  runner cl
+  where
+    chan = conLogger cl