diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,4 @@
+0.1.0
+-----
+
+* Public release
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,20 @@
+Copyright (c) 2016 Typeable.io contributors
+
+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/generic-arbitrary.cabal b/generic-arbitrary.cabal
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--- /dev/null
+++ b/generic-arbitrary.cabal
@@ -0,0 +1,23 @@
+name:                generic-arbitrary
+version:             0.1.0
+synopsis:            Generic implementation for QuickCheck's Arbitrary
+description:
+    Generic implementations of methods of the 'Arbitrary' class from the
+    QuickCheck library. The approach taken here can lead to diverging instances
+    for recursive types but is safe for non-recursive ones and guarantees
+    flat distribution for constructors of sum-types.
+
+license:             MIT
+license-file:        LICENSE
+author:              Typeable.io contributors
+maintainer:          makeit@typeable.io
+category:            Generic
+build-type:          Simple
+extra-source-files:  CHANGELOG.md
+cabal-version:       >=1.22
+
+library
+  exposed-modules:     Test.QuickCheck.Arbitrary.Generic
+  build-depends:       QuickCheck >= 2.8, base >=4.8 && <5
+  hs-source-dirs:      src
+  default-language:    Haskell2010
diff --git a/src/Test/QuickCheck/Arbitrary/Generic.hs b/src/Test/QuickCheck/Arbitrary/Generic.hs
new file mode 100644
--- /dev/null
+++ b/src/Test/QuickCheck/Arbitrary/Generic.hs
@@ -0,0 +1,67 @@
+{-# LANGUAGE UndecidableInstances, TypeOperators, DataKinds, TypeFamilies, ScopedTypeVariables#-}
+
+{- |
+
+Generic implementation of the 'arbitrary' method. Example usage:
+
+@
+data Foo = Foo
+  { _fooX :: X
+  , _fooY :: Y
+  } deriving (Generic)
+
+instance Arbitrary Foo where
+  arbitrary = genericArbitrary
+  shrink = genericShrink
+@
+
+The generated 'arbitrary' method is equivalent to
+
+@Foo <$> arbitrary <*> arbitrary@.
+
+-}
+
+module Test.QuickCheck.Arbitrary.Generic
+  ( Arbitrary(..)
+  , genericArbitrary
+  , genericShrink
+  ) where
+
+import Control.Applicative
+import Data.Proxy
+import GHC.Generics as G
+import GHC.TypeLits
+import Test.QuickCheck as QC
+
+class GArbitrary a where
+  gArbitrary :: QC.Gen (a x)
+
+instance GArbitrary G.U1 where
+  gArbitrary = pure G.U1
+
+instance Arbitrary c => GArbitrary (G.K1 i c) where
+  gArbitrary = G.K1 <$> arbitrary
+
+instance GArbitrary f => GArbitrary (G.M1 i c f) where
+  gArbitrary = G.M1 <$> gArbitrary
+
+instance (GArbitrary a, GArbitrary b) => GArbitrary (a G.:*: b) where
+  gArbitrary = liftA2 (G.:*:) gArbitrary gArbitrary
+
+-- | Calculates count of constructors encoded by particular ':+:'.
+-- Internal use only.
+type family SumLen a :: Nat where
+  SumLen (a G.:+: b) = (SumLen a) + (SumLen b)
+  SumLen a           = 1
+
+instance (GArbitrary a, GArbitrary b, KnownNat (SumLen a), KnownNat (SumLen b)
+         ) => GArbitrary (a G.:+: b) where
+  gArbitrary = frequency
+    [ (lfreq, G.L1 <$> gArbitrary)
+    , (rfreq, G.R1 <$> gArbitrary) ]
+    where
+      lfreq = fromIntegral $ natVal (Proxy :: Proxy (SumLen a))
+      rfreq = fromIntegral $ natVal (Proxy :: Proxy (SumLen b))
+
+genericArbitrary :: (Generic a, GArbitrary ga, ga ~ G.Rep a) => Gen a
+genericArbitrary = G.to <$> gArbitrary