JavaScript Object Notation (aka JSON) is a very popular lightweight data-interchange format. Jodd Json is lightweight library for (de)serializing Java objects into and from JSON.

Before you say: "Yet another one?", please check what makes Json different. The power of Jodd Json library is its control over the process of serialization and parsing; ease of use and great performances.

Quick Start

Let's see how it looks working with Json:

    Book book = library.getBook("Jodd In Action");

    String json = JsonSerializer.create()

The resulting JSON may look like this:

        "name" : "Jodd In Action",
        "year" : 2018,
        "authors" : [
            { "firstName" : "Igor" }

Finally, parse it back:

    Book book2 = new JsonParser()
            .parse(json, Book.class);

Pretty simple, right? But don't get blinded by the simplicity, Json is pretty powerful. Did I mention it is on of the fastest JSON frameworks out there?


  • simple syntax and fluent interface,
  • lazy parser that is super fast,
  • annotations for better conversion control,
  • convenient JSONObject and JSONArray classes,
  • powerful exclusion and inclusion rules,
  • serializer definition for types,
  • the only library that can handle any number size,
  • pretty formatting of the JSON output,
  • loose, more forgiving, parsing mode,
  • ways to address keys and values of the Maps
  • flexible fine-tuning,
  • and more…

Continue with more details about the serializer and parser.