jsonecho

XML to JSON Schema

Paste an XML document and get JSON Schema types that match its structure.

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How to use XML to JSON Schema

  1. Paste a representative XML sample, ideally one with all the optional fields filled in.
  2. Set the name of the root type, and decide whether you want helper code as well or types only.
  3. Copy the generated JSON Schema code into your project.

About XML to JSON Schema

Writing model classes by hand for a big XML payload is dull, and it is where typos creep in. Paste a sample here and the generator works out the structure: which fields exist, which are objects, which are arrays and what type each value has. The output is a JSON Schema document (draft-06 flavour) describing the structure.

XML is first converted to JSON the same way as in our XML to JSON tool: attributes get an @_ prefix and text content next to attributes is called #text. The JSON Schema types are generated from that result. It is inferred from one sample, so it describes that sample. Review it before you use it to validate production data, for example to tighten string formats or to add limits.

Using the generated code

Save the output as a .json file and use it with a validator such as Ajv or jsonschema to check other documents.

Fields that are not present in every sample record are left out of the required list.

Frequently asked questions

What does the generated JSON Schema code depend on?

The output is a JSON Schema document (draft-06 flavour) describing the structure.

How do I parse XML with the result?

Convert the XML to JSON first (our XML to JSON tool does this the same way), then save the output as a .json file and use it with a validator such as Ajv or jsonschema to check other documents.

How are optional and missing fields handled?

Fields that are not present in every sample record are left out of the required list.

Does the generator look at more than one record?

It only knows what is in your sample. If a field is missing from your example, it will not appear in the types, and if a value is null in your example, its type is unknown. Paste an example in which as many fields as possible are filled in, or paste an array with several different records.

Is my XML sent to a server?

No. The generator is downloaded to your browser the first time you use it, about 1 MB, and everything runs locally.

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