diff --git a/LICENSE b/LICENSE
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+++ b/LICENSE
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+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
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+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<http://www.gnu.org/licenses/>.
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/dist/build/testsStub/testsStub-tmp/testsStub.hs b/dist/build/testsStub/testsStub-tmp/testsStub.hs
new file mode 100644
--- /dev/null
+++ b/dist/build/testsStub/testsStub-tmp/testsStub.hs
@@ -0,0 +1,5 @@
+module Main ( main ) where
+import Distribution.Simple.Test.LibV09 ( stubMain )
+import Tests ( tests )
+main :: IO ()
+main = stubMain tests
diff --git a/purescript-bridge.cabal b/purescript-bridge.cabal
new file mode 100644
--- /dev/null
+++ b/purescript-bridge.cabal
@@ -0,0 +1,88 @@
+-- Initial purescript-bridge.cabal generated by cabal init.  For further
+-- documentation, see http://haskell.org/cabal/users-guide/
+
+-- The name of the package.
+name:                purescript-bridge
+
+-- The package version.  See the Haskell package versioning policy (PVP)
+-- for standards guiding when and how versions should be incremented.
+-- http://www.haskell.org/haskellwiki/Package_versioning_policy
+-- PVP summary:      +-+------- breaking API changes
+--                   | | +----- non-breaking API additions
+--                   | | | +--- code changes with no API change
+version:             0.1.0.0
+
+-- A short (one-line) description of the package.
+synopsis:            Generate PureScript data types from Haskell data types
+
+-- A longer description of the package.
+-- description:
+
+-- The license under which the package is released.
+license:             AGPL-3
+
+-- The file containing the license text.
+license-file:        LICENSE
+
+-- The package author(s).
+author:              Robert Klotzner
+
+-- An email address to which users can send suggestions, bug reports, and
+-- patches.
+maintainer:          robert.klotzner@gmx.at
+
+-- A copyright notice.
+-- copyright:
+
+category:            Web
+
+build-type:          Simple
+
+-- Extra files to be distributed with the package, such as examples or a
+-- README.
+-- extra-source-files:
+
+-- Constraint on the version of Cabal needed to build this package.
+cabal-version:       >=1.10
+
+source-repository head
+  type:     git
+  location: https://github.com/eskimor/purescript-bridge.git
+
+library
+  -- Modules exported by the library.
+  exposed-modules: PureScript.Bridge.SumType
+                , PureScript.Bridge.TypeInfo
+                , PureScript.Bridge.Tuple
+                , PureScript.Bridge.Primitives
+                , PureScript.Bridge
+                , PureScript.Bridge.Printer
+
+  -- Modules included in this library but not exported.
+  -- other-modules:
+
+  -- LANGUAGE extensions used by modules in this package.
+  -- other-extensions:
+
+  -- Other library packages from which modules are imported.
+  build-depends:       base >=4.8 && <4.9
+                     , containers
+                     , filepath
+                     , text
+                     , generic-deriving
+
+  ghc-options:       -Wall
+
+  -- Directories containing source files.
+  hs-source-dirs:      src
+
+  -- Base language which the package is written in.
+  default-language:    Haskell2010
+
+Test-Suite tests
+    type:       detailed-0.9
+    test-module: Tests
+    build-depends: base, Cabal >= 1.9.2
+                , HUnit
+                , purescript-bridge
+    hs-source-dirs: test
diff --git a/src/PureScript/Bridge.hs b/src/PureScript/Bridge.hs
new file mode 100644
--- /dev/null
+++ b/src/PureScript/Bridge.hs
@@ -0,0 +1,56 @@
+{-# LANGUAGE OverloadedStrings #-}
+module PureScript.Bridge (
+    bridgeSumType
+  , defaultBridge
+ ) where
+
+
+import Data.Text (Text)
+import qualified Data.Text as T
+import Data.Monoid
+
+import PureScript.Bridge.SumType
+import PureScript.Bridge.TypeInfo
+import PureScript.Bridge.Tuple
+import PureScript.Bridge.Primitives
+
+
+import Control.Applicative
+import Data.Maybe
+
+bridgeSumType :: TypeBridge -> SumType -> SumType
+bridgeSumType br (SumType t cs) = SumType t . map (bridgeConstructor br) $ cs
+
+{--
+ -- Optimistically and recursively translate types: If the passed TypeBridge returns Nothing,
+ -- then the original TypeInfo is returned with the typePackage field cleared.
+ -- You don't need to call this function directly, just use bridgeSumType with your TypeBridge
+--}
+doBridge :: TypeBridge -> TypeInfo -> TypeInfo
+doBridge br info = let
+    translated = info { typePackage = "" }
+    res = fromMaybe translated (br info)
+  in
+    res {
+      typeParameters = map (doBridge br) . typeParameters $ res
+    }
+
+-- | Default bridge for mapping primitive/common types:
+-- | You can append your own bridges like this:
+-- | defaultBridge <|> myBridge1 <|> myBridge2
+defaultBridge :: TypeBridge
+defaultBridge t = stringBridge t
+  <|> listBridge t
+  <|> maybeBridge t
+  <|> eitherBridge t
+  <|> intBridge t
+  <|> tupleBridge t
+
+bridgeConstructor :: TypeBridge -> DataConstructor -> DataConstructor
+bridgeConstructor br (DataConstructor name (Left infos)) =
+    DataConstructor name . Left $ map (doBridge br) infos
+bridgeConstructor br (DataConstructor name (Right record)) =
+    DataConstructor name . Right $ map (bridgeRecordEntry br) record
+
+bridgeRecordEntry :: TypeBridge -> RecordEntry -> RecordEntry
+bridgeRecordEntry br (RecordEntry label value) = RecordEntry label $ doBridge br value
diff --git a/src/PureScript/Bridge/Primitives.hs b/src/PureScript/Bridge/Primitives.hs
new file mode 100644
--- /dev/null
+++ b/src/PureScript/Bridge/Primitives.hs
@@ -0,0 +1,55 @@
+{-# LANGUAGE OverloadedStrings #-}
+module PureScript.Bridge.Primitives where
+
+
+import PureScript.Bridge.TypeInfo
+
+
+intBridge :: TypeBridge
+intBridge t
+  | eqTypeName "Int" t = Just $ t {
+      typePackage = "purescript-prim"
+    , typeModule = "Prim"
+    }
+  | otherwise = Nothing
+
+
+stringBridge :: TypeBridge
+stringBridge t
+  | isStringLike = Just $ t {
+      typePackage = "purescript-prim"
+    , typeModule = "Prim"
+    , typeName = "String"
+    , typeParameters = []
+    }
+  | otherwise = Nothing
+  where
+    isStringLike = isText || isString
+    isText = typeName t == "Text" && typePackage t == "text"
+    isString = typeName t == "[]" && all ((==) "Char" . typeName) (typeParameters t)
+
+listBridge :: TypeBridge
+listBridge t
+  | eqTypeName "[]" t = Just $ t {
+      typePackage = "purescript-prim"
+    , typeModule = "Prim"
+    , typeName = "Array"
+    }
+  | otherwise = Nothing
+
+maybeBridge :: TypeBridge
+maybeBridge t
+  | eqTypeName "Maybe" t = Just $ t {
+      typePackage = "purescript-maybe"
+    , typeModule = "Data.Maybe"
+    }
+  | otherwise = Nothing
+
+
+eitherBridge :: TypeBridge
+eitherBridge t
+  | eqTypeName "Either" t = Just $ t {
+      typePackage = "purescript-either"
+    , typeModule = "Data.Either"
+    }
+  | otherwise = Nothing
diff --git a/src/PureScript/Bridge/Printer.hs b/src/PureScript/Bridge/Printer.hs
new file mode 100644
--- /dev/null
+++ b/src/PureScript/Bridge/Printer.hs
@@ -0,0 +1,100 @@
+{-# LANGUAGE OverloadedStrings #-}
+module PureScript.Bridge.Printer where
+
+import Data.Map.Strict (Map)
+import qualified Data.Map.Strict as M
+import Data.Monoid
+import Data.Set (Set)
+import qualified Data.Set as S
+import Data.Text (Text)
+import qualified Data.Text as T
+import qualified Data.Text.IO as T
+import System.FilePath
+
+
+import PureScript.Bridge.SumType
+import PureScript.Bridge.TypeInfo
+
+
+data PSModule = PSModule {
+  psModuleName :: Text
+, psImportLines :: Map Text ImportLine
+, psTypes :: [SumType]
+} deriving Show
+
+data ImportLine = ImportLine {
+  importModule :: Text
+, importTypes :: Set Text
+} deriving Show
+
+type Modules = Map Text PSModule
+type ImportLines = Map Text ImportLine
+
+printModule :: FilePath -> PSModule -> IO ()
+printModule root m = T.writeFile mPath . moduleToText $ m
+  where
+    mFile = joinPath . map T.unpack . T.splitOn "." $ psModuleName m
+    mPath = root </> mFile
+
+moduleToText :: PSModule -> Text
+moduleToText m = T.unlines $
+  "module " <> psModuleName m <> "where\n"
+  : map importLineToText (M.elems (psImportLines m))
+  ++ [ "\n\n" ]
+  ++ map sumTypeToText (psTypes m)
+
+
+importLineToText :: ImportLine -> Text
+importLineToText l = "import " <> importModule l <> "(" <> typeList <> ")"
+  where
+    typeList = T.intercalate ", " (S.toList (importTypes l))
+
+sumTypeToText :: SumType -> Text
+sumTypeToText (SumType t cs) = T.unlines $
+    "data " <> typeName t <> "="
+  : [ "    " <> T.intercalate "  | " (map (constructorToText 4) cs) ]
+
+constructorToText :: Int -> DataConstructor -> Text
+constructorToText _ (DataConstructor n (Left ts))  = n <> T.intercalate " " (map typeInfoToText ts)
+constructorToText indentation (DataConstructor n (Right rs)) = T.unlines $
+      n <> " {"
+    : [spaces (indentation + 2) <> T.intercalate intercalation (map recordEntryToText rs)]
+    ++ [ spaces indentation <> "}" ]
+  where
+    intercalation = "\n" <> spaces indentation <> "," <> spaces 2
+    spaces c = T.replicate c " "
+
+recordEntryToText :: RecordEntry -> Text
+recordEntryToText e = recLabel e <> " :: " <> typeInfoToText (recValue e)
+
+
+typeInfoToText :: TypeInfo -> Text
+typeInfoToText t = if length textParameters > 1 then "(" <> inner <> ")" else inner
+  where
+    inner = typeName t <> T.intercalate " " textParameters
+    textParameters = map typeInfoToText (typeParameters t)
+
+sumTypesToModules :: Modules -> [SumType] -> Modules
+sumTypesToModules = foldr sumTypeToModule
+
+sumTypeToModule :: SumType -> Modules -> Modules
+sumTypeToModule st@(SumType t _) = M.alter (Just. updateModule) (typeModule t)
+  where
+    updateModule Nothing = PSModule {
+          psModuleName = typeModule t
+        , psImportLines = typesToImportLines M.empty (getUsedTypes st)
+        , psTypes = [st]
+        }
+    updateModule (Just m) = m {
+        psImportLines = typesToImportLines (psImportLines m) (getUsedTypes st)
+      , psTypes = st : psTypes m
+      }
+
+typesToImportLines :: ImportLines -> [TypeInfo] -> ImportLines
+typesToImportLines = foldr typeToImportLines
+
+typeToImportLines :: TypeInfo -> ImportLines -> ImportLines
+typeToImportLines t = M.alter (Just . updateLine) (typeModule t)
+  where
+    updateLine Nothing = ImportLine (typeModule t) (S.singleton (typeName t))
+    updateLine (Just (ImportLine m types)) = ImportLine m $ S.insert (typeName t) types
diff --git a/src/PureScript/Bridge/SumType.hs b/src/PureScript/Bridge/SumType.hs
new file mode 100644
--- /dev/null
+++ b/src/PureScript/Bridge/SumType.hs
@@ -0,0 +1,85 @@
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE TypeOperators #-}
+{-# LANGUAGE TypeSynonymInstances #-}
+
+
+{-# LANGUAGE DeriveGeneric #-}
+
+
+module PureScript.Bridge.SumType where
+
+import Generics.Deriving
+import Data.Text (Text)
+import qualified Data.Text as T
+import Data.Proxy
+import Data.Typeable
+
+import PureScript.Bridge.TypeInfo
+
+data SumType = SumType TypeInfo [DataConstructor] deriving Show
+
+data DataConstructor = DataConstructor {
+  sigConstructor :: Text
+, sigValues :: Either [TypeInfo] [RecordEntry]
+} deriving Show
+
+data RecordEntry = RecordEntry {
+  recLabel :: Text
+, recValue :: TypeInfo
+} deriving Show
+
+toSumType :: forall t. (Generic t, Typeable t, GDataConstructor (Rep t)) => Proxy t -> SumType
+toSumType p = SumType  (mkTypeInfo p) constructors
+  where
+    constructors = gToConstructors (from (undefined :: t))
+
+class GDataConstructor f where
+  gToConstructors :: f a -> [DataConstructor]
+
+class GRecordEntry f where
+  gToRecordEntries :: f a -> [RecordEntry]
+
+instance (Datatype a, GDataConstructor c) =>  GDataConstructor (D1 a c) where
+  gToConstructors (M1 c) = gToConstructors c
+
+instance (GDataConstructor a, GDataConstructor b) => GDataConstructor (a :+: b) where
+  gToConstructors (_ :: (a :+: b) f) = gToConstructors (undefined :: a f) ++ gToConstructors (undefined :: b f)
+
+instance (Constructor a, GRecordEntry b) => GDataConstructor (C1 a b) where
+  gToConstructors c@(M1 r) = [
+        DataConstructor {
+          sigConstructor = constructor
+        , sigValues = values
+        }
+      ]
+    where
+      constructor = T.pack $ conName c
+      values = if conIsRecord c
+        then Right $ gToRecordEntries r
+        else Left $ map recValue $ gToRecordEntries r
+
+instance (GRecordEntry a, GRecordEntry b) => GRecordEntry (a :*: b) where
+  gToRecordEntries (_ :: (a :*: b) f) = gToRecordEntries (undefined :: a f) ++ gToRecordEntries (undefined :: b f)
+
+
+instance GRecordEntry U1 where
+  gToRecordEntries _ = []
+
+instance (Selector a, Typeable t) => GRecordEntry (S1 a (K1 R t)) where
+  gToRecordEntries e = [
+      RecordEntry { recLabel = T.pack (selName e)
+      , recValue = mkTypeInfo (Proxy :: Proxy t)
+      }
+    ]
+
+getUsedTypes :: SumType -> [TypeInfo]
+getUsedTypes (SumType _ cs) = foldr constructorToType [] cs
+
+constructorToType :: DataConstructor -> [TypeInfo] -> [TypeInfo]
+constructorToType (DataConstructor _ (Left myTs)) ts = concatMap flattenTypeInfo myTs ++ ts
+constructorToType (DataConstructor _ (Right rs))  ts = concatMap (flattenTypeInfo . recValue) rs ++ ts
+
+flattenTypeInfo :: TypeInfo -> [TypeInfo]
+flattenTypeInfo t = t : concatMap flattenTypeInfo (typeParameters t)
diff --git a/src/PureScript/Bridge/Tuple.hs b/src/PureScript/Bridge/Tuple.hs
new file mode 100644
--- /dev/null
+++ b/src/PureScript/Bridge/Tuple.hs
@@ -0,0 +1,39 @@
+{-# LANGUAGE OverloadedStrings #-}
+module PureScript.Bridge.Tuple where
+
+import Data.Monoid
+import Data.Text (Text)
+import qualified Data.Text as T
+
+
+import PureScript.Bridge.TypeInfo
+
+data TupleParserState =
+  Start | OpenFound | ColonFound | Tuple | NoTuple deriving (Eq, Show)
+
+
+tupleBridge :: TypeBridge
+tupleBridge t
+  | isTuple (typeName t) = Just $ t {
+      typePackage = "purescript-tuples"
+    , typeModule = if size == 2 then "Data.Tuple" else "Data.Tuple.Nested"
+    , typeName = "Tuple" <> if size == 2 then "" else T.pack (show size)
+    }
+  | otherwise = Nothing
+  where
+    size = length $ typeParameters t
+
+
+step :: TupleParserState -> Char -> TupleParserState
+step Start '(' = OpenFound
+step Start _ = NoTuple
+step OpenFound ',' = ColonFound
+step OpenFound _ = NoTuple
+step ColonFound ',' = ColonFound
+step ColonFound ')' = Tuple
+step ColonFound _ = NoTuple
+step Tuple _ = NoTuple
+step NoTuple _ = NoTuple
+
+isTuple :: Text -> Bool
+isTuple = (== Tuple) . T.foldl' step Start
diff --git a/src/PureScript/Bridge/TypeInfo.hs b/src/PureScript/Bridge/TypeInfo.hs
new file mode 100644
--- /dev/null
+++ b/src/PureScript/Bridge/TypeInfo.hs
@@ -0,0 +1,44 @@
+{-# LANGUAGE OverloadedStrings #-}
+
+module PureScript.Bridge.TypeInfo where
+
+
+import Data.Text (Text)
+import qualified Data.Text as T
+import Data.Maybe
+import Data.Proxy
+import Data.Typeable
+
+
+-- Translates a Haskell type info to a PureScript type info:
+type TypeBridge = TypeInfo -> Maybe TypeInfo
+
+
+-- Basic info about a data type:
+data TypeInfo = TypeInfo {
+  -- | Hackage package
+  typePackage :: Text
+  -- | Full Module path
+, typeModule :: Text
+, typeName :: Text
+, typeParameters :: [TypeInfo]
+} deriving (Eq, Show)
+
+mkTypeInfo :: Typeable t => Proxy t -> TypeInfo
+mkTypeInfo = mkTypeInfo' . typeRep
+
+mkTypeInfo' :: TypeRep -> TypeInfo
+mkTypeInfo' rep = let
+    con = typeRepTyCon rep
+  in TypeInfo {
+    typePackage = T.pack $ tyConPackage con
+  , typeModule = T.pack $ tyConModule con
+  , typeName = T.pack $ tyConName con
+  , typeParameters = map mkTypeInfo' (typeRepArgs rep)
+  }
+
+
+
+-- Little helper for type bridge implementers
+eqTypeName :: Text -> TypeInfo -> Bool
+eqTypeName name = (== name) . typeName
diff --git a/test/Tests.hs b/test/Tests.hs
new file mode 100644
--- /dev/null
+++ b/test/Tests.hs
@@ -0,0 +1,36 @@
+{-# LANGUAGE OverloadedStrings #-}
+module Tests (tests) where
+
+
+import Distribution.TestSuite as T
+import Test.HUnit
+
+
+import Data.Proxy
+import PureScript.Bridge.TypeInfo
+
+
+testTypeInfo :: IO Progress
+testTypeInfo = do
+  let expected = TypeInfo {
+    typePackage = "ghc-prim"
+  , typeModule = "GHC.Types"
+  , typeName = "Int"
+  , typeParameters = []
+  }
+  let tests = test ["Int Test" ~: expected ~=? mkTypeInfo (Proxy :: Proxy Int)]
+  r <- runTestTT tests
+  return $ if errors r == 0
+    then Finished Pass
+    else Finished $ Fail (show r)
+
+tests :: IO [T.Test]
+tests = return [ Test test1]
+  where
+    test1 = TestInstance
+        { run = testTypeInfo
+        , name = "Test TypeInfo code"
+        , tags = []
+        , options = []
+        , setOption = \_ _ -> Right test1
+        }