Tools

Development

Color Converter
CORS Debugger
Cron Test
Diff Checker
DNS Lookup
Environment Formatter
HTTP Status Codes
JSON Formatter
JWT Decoder
Markdown Previewer
Regex Tester
Schema Generator

Finance

Loan Calculator
Savings Calculator

Utilities

Hash Generator
MRR Projection
Password Generator
Secrets Generator
Time Zone Converter
Unix Converter
UUID Generator

DevelopmentSchema Generator

Command Palette

Search for a command to run...

Schema Generator

Paste JSON and generate TypeScript types, JSON Schema, or a Zod validator.

JSON Input

1

Paste JSON above or load the sample to generate a schema.

Output Format

Local & Private

All generation happens entirely in your browser. Your JSON is never uploaded.

Tips

Nested objects become named interfaces or sub-schemas using the property key as the type name.

Array element types are inferred from the first item. Empty arrays become unknown[].

All object keys are treated as required. null values produce a null type.