diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,30 @@
+Copyright (c) 2016, Luke Clifton
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Luke Clifton nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.md b/README.md
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--- /dev/null
+++ b/README.md
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+A library to do naughty things with
+[io-streams](https://hackage.haskell.org/package/io-streams).
+
+It let's you:
+
+-   convert `InputStream`s to lazy lists
+-   build lazy lists by feeding an `OutputStream`
+-   convert `InputStream ByteString`s to lazy `ByteStrings`
+
+This can be handy when you are interfacing with other libraries that do
+the right thing in the presence of lazy IO, but don't provide an
+io-streams interface. Of course, the correct solution is to contribute
+the io-streams interface.
diff --git a/Setup.hs b/Setup.hs
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--- /dev/null
+++ b/Setup.hs
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+import Distribution.Simple
+main = defaultMain
diff --git a/lazy-io-streams.cabal b/lazy-io-streams.cabal
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+++ b/lazy-io-streams.cabal
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+name:                lazy-io-streams
+version:             0.1.0.0
+synopsis:            Get lazy with your io-streams
+license:             BSD3
+license-file:        LICENSE
+author:              Luke Clifton
+maintainer:          ltclifton@gmail.com
+build-type:          Simple
+extra-source-files:  README.md
+cabal-version:       >=1.10
+
+library
+  exposed-modules:     System.IO.Streams.Lazy
+  build-depends:       base >=4.8 && <4.10
+                     , bytestring
+                     , io-streams
+  hs-source-dirs:      src
+  default-language:    Haskell2010
diff --git a/src/System/IO/Streams/Lazy.hs b/src/System/IO/Streams/Lazy.hs
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--- /dev/null
+++ b/src/System/IO/Streams/Lazy.hs
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+{-# OPTIONS_GHC -fno-warn-tabs #-}
+-- | This module provides some arguably evil functions
+-- for turning your nice io-streams into lazy lists.
+module System.IO.Streams.Lazy where
+
+import Prelude hiding (read)
+import qualified Data.ByteString as BS
+import qualified Data.ByteString.Lazy as BL
+import System.IO.Streams (InputStream, OutputStream, read)
+import System.IO.Streams.Concurrent (makeChanPipe)
+import System.IO.Unsafe (unsafeInterleaveIO)
+
+-- | Convert an input stream into a lazy list.
+toLazyList :: InputStream a -> IO [a]
+toLazyList is = unsafeInterleaveIO $ do
+	ma <- read is
+	case ma of
+		Nothing -> return []
+		Just a -> do
+			as <- toLazyList is
+			return (a : as)
+
+-- | Create an output stream and a lazy list that contains the values
+-- that you feed into that output stream. Make sure you evaluate the list
+-- in a separate thread to the one you write to the stream in.
+lazyListOutput :: IO (OutputStream a, [a])
+lazyListOutput = do
+	(is, os) <- makeChanPipe
+	as <- toLazyList is
+	return (os, as)
+
+-- | Convert an input stream of strict `ByteString`s to a lazy `ByteString`.
+toLazyByteString :: InputStream BS.ByteString -> IO BL.ByteString
+toLazyByteString is = BL.fromChunks <$> toLazyList is
+
+-- | Create a lazy `ByteString` by feeding an `OutputStream` strict
+-- `ByteString`s
+lazyByteStringOutput :: IO (OutputStream BS.ByteString, BL.ByteString)
+lazyByteStringOutput = do
+    (os, ll) <- lazyListOutput
+    return (os, BL.fromChunks ll)