diff --git a/ChangeLog.md b/ChangeLog.md
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--- /dev/null
+++ b/ChangeLog.md
@@ -0,0 +1,5 @@
+# Changelog for srt-dhall
+
+## v0.1.0.0
+
+* Add `FromDhall` and `ToDhall` instances for `SRT`.
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
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+Copyright Daniel Firth (c) 2021
+
+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 Daniel Firth 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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+# srt-dhall
+
+`FromDhall` and `ToDhall` instances for
+[srt](https://hackage.haskell.org/package/srt).
diff --git a/src/Media/Subtitles/SRT/Dhall.hs b/src/Media/Subtitles/SRT/Dhall.hs
new file mode 100644
--- /dev/null
+++ b/src/Media/Subtitles/SRT/Dhall.hs
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+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE RecordWildCards #-}
+
+module Media.Subtitles.SRT.Dhall
+  ( srtDecoder,
+  )
+where
+
+import qualified Data.Attoparsec.Text as A
+import Data.Either.Validation
+import Data.Functor.Contravariant
+import Data.Text as T
+import Dhall
+import Formatting
+import Media.Subtitles.SRT
+import Media.Subtitles.SRT.Attoparsec
+import Media.Subtitles.SRT.Formatting
+
+instance FromDhall SRT where
+  autoWith options = srtDecoder options
+
+srtDecoder :: InputNormalizer -> Decoder SRT
+srtDecoder opts =
+  Decoder {..}
+  where
+    textDecoder :: Decoder Text
+    textDecoder = autoWith opts
+
+    extract expression =
+      case Dhall.extract textDecoder expression of
+        Success x -> case A.parseOnly parseSRT x of
+          Left exception -> Dhall.extractError (T.pack $ show exception)
+          Right k -> Success k
+        Failure e -> Failure e
+
+    expected = Dhall.expected textDecoder
+
+instance ToDhall SRT where
+  injectWith = fmap (contramap (sformat srtf)) injectWith
diff --git a/srt-dhall.cabal b/srt-dhall.cabal
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--- /dev/null
+++ b/srt-dhall.cabal
@@ -0,0 +1,45 @@
+cabal-version: 1.12
+
+-- This file has been generated from package.yaml by hpack version 0.34.4.
+--
+-- see: https://github.com/sol/hpack
+
+name:           srt-dhall
+version:        0.1.0.0
+synopsis:       Dhall Encoder/Decoder for SRT.
+description:    Dhall Encoder/Decoder for SRT.
+category:       Media
+author:         Daniel Firth
+maintainer:     dan.firth@homotopic.tech
+copyright:      2021 Daniel Firth
+license:        MIT
+license-file:   LICENSE
+build-type:     Simple
+extra-source-files:
+    README.md
+    ChangeLog.md
+
+source-repository head
+  type: git
+  location: https://gitlab.com/homotopic-tech/srt-dhall
+
+library
+  exposed-modules:
+      Media.Subtitles.SRT.Dhall
+  other-modules:
+      Paths_srt_dhall
+  hs-source-dirs:
+      src
+  build-depends:
+      attoparsec >=0.10 && <0.15
+    , base >=4.7 && <5
+    , dhall >=1 && <1.40
+    , either >=5 && <5.1
+    , formatting >=7.0.0 && <7.2
+    , simple-media-timestamp ==0.2.*
+    , simple-media-timestamp-formatting >=0.1.1.0 && <0.2
+    , srt >=0.1.1 && <0.2
+    , srt-attoparsec >=0.1.0.0 && <0.2
+    , srt-formatting >=0.1.0.0 && <0.2
+    , text >=1.0 && <1.3
+  default-language: Haskell2010