XML to Haskell Converter

How to use

1. Paste a representative XML document that reflects the feed, partner response, or document shape your Haskell code actually parses.
2. Review the generated `data` declarations, nested record types, and inferred list fields created from repeated XML nodes.
3. Copy the output into your project and refine module names, deriving clauses, or custom parsing where production code needs them.

Benefits

• Produces Haskell record types that give XML-backed parsing flows a stronger starting point than generic node traversal.
• Keeps nested XML payloads readable through explicit typed records instead of loosely structured parser output.
• Gives functional codebases a transport-model layer before parser-specific refinement or richer domain modeling.

Best use cases

• Haskell services that still decode XML partner feeds, document-style exports, or scheduled imports.
• CLI tools and ingestion jobs that normalize XML documents into typed records.
• Teams moving legacy XML parsing toward explicit functional data models before custom parser work hardens.

Haskell XML tips

• Review collection shapes and optional sections against real XML samples before treating generated types as stable contracts.
• Add parser-specific decode logic after generation only when the XML source needs nonstandard handling.
• Keep generated transport types separate from richer domain models when invariants grow beyond the raw XML shape.

Sample XML

<user>
  <id>101</id>
  <name>Ada Lovelace</name>
  <active>true</active>
  <roles>
    <role>admin</role>
    <role>editor</role>
  </roles>
  <profile>
    <email>ada@example.com</email>
    <score>9.8</score>
  </profile>
</user>

Sample output

{-# LANGUAGE DeriveGeneric #-}
import GHC.Generics (Generic)
import Data.Text (Text)
import Data.Aeson (FromJSON, ToJSON)

data UserModel = UserModel
  { id :: Int
  , name :: Text
  , active :: Bool
  }
  deriving (Show, Eq, Generic)

instance FromJSON UserModel
instance ToJSON UserModel

FAQ