Does it validate nested schemas?

Yes. You can add complex array items or nested objects to define deep schema structures visually.

Is Zod code fully compliant?

Yes, it generates standard ES module Zod definitions (e.g. z.object({...})) matching your visual structure.

JSON Schema Builder

Build JSON validation models visually. Configure properties, toggle required attributes, and instantly copy JSON Schema, Zod code, or TypeScript interfaces.

Visual Schema Editor

Design your schema properties, types, and validation rules.

Schema Title

Schema Description

Root Properties

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How to use JSON Schema Builder

Add schema properties and set their names.
Select data types (string, number, integer, boolean, array, object).
Configure format validations, min/max limits, or toggle the required checkbox.
Select Zod, JSON Schema, or TypeScript tab to copy the generated schema code.

What is JSON Schema Builder?

JSON Schema Builder provides a visual GUI interface to design structured JSON payloads without writing code. Add properties recursively, choose validation types (string, number, boolean, array, object), set minimum/maximum ranges, regex pattern constraints, and mark properties as required.

As you build, the tool dynamically generates validation code for three environments: standard JSON Schema (draft-07), Zod schemas for Node/web validators, and standard TypeScript interfaces for compiler type-safety.

FAQ

Does it validate nested schemas?: Yes. You can add complex array items or nested objects to define deep schema structures visually.
Is Zod code fully compliant?: Yes, it generates standard ES module Zod definitions (e.g. z.object({...})) matching your visual structure.

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Author

Marcus Webb"The DevTool Craftsman"

Full-Stack Developer & Tools Architect

Marcus has been writing code since the dial-up era. He has contributed to open-source developer tools, built CI/CD pipelines for startups, and debugged production incidents at 3 AM more times than he would like to admit. His philosophy is that the best developer tool is the one that gets out of your way, and he writes about practical tooling that helps teams ship faster with fewer headaches.

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