Extensible annotation based serialization/deserialization/validation library


JSON (and later YAML) serializer and validator inspired by JMS Serializer Annotations and Symfony Validation Constraint Annotations.


  • Be a compliment to, not a replacement for, JSON::Serializable or YAML::Serializable
  • Extensible and customizable to fit all use cases
  • Make working with JSON APIs in Crystal much easier
  • Be easy to adopt and start using effectively
  • Work out of the box with most ORMs (assuming they are compatible with JSON::Serializable/annotations)