Ruby Class to JSON Schema Generator
Convert Ruby attr_accessor-style models into JSON Schema, then jump to the Mock Generator to craft matching sample JSON.
Need JSON to Ruby?
Convert JSON data to Ruby code
Ruby code Input
JSON Schema Output
Paste your Ruby classes to produce JSON Schema instantly.
Supports attr_accessor/attr_reader declarations, nested classes, and ignored methods.
Frequently Asked Questions
What Ruby constructs are supported?
The parser focuses on classes that expose attributes via attr_reader/attr_accessor declarations. Each attribute becomes a JSON Schema property. Methods and other Ruby code are ignored, so you can paste plain model classes safely.
How are attributes typed?
Since Ruby is dynamic, attributes default to `string` in the schema. You can refine types by providing literal defaults; future updates will read type comments. For now this tool provides a quick structural schema for DTOs.
Why use this tool?
When sharing Ruby domain objects or ActiveModel-like DTOs with other teams, a JSON Schema helps document payloads and validate contracts. This converter runs entirely in your browser.
How do I get mock JSON payloads?
After generating the schema, click "Generate Mock Data" to open the Mock Generator with the schema preloaded and create example payloads instantly.