Offline engine (processed locally)JAVASCRIPT v1.0.0 Spec

JSON to PropTypes

v1.0.0

Create React PropTypes definitions automatically from a JSON object. This free converter outputs exact shape, arrayOf, and oneOfType validators, ensuring runtime prop validation in your React components. No more manual PropTypes typing. Fast, online, and requires no sign-up.

Live sync—ms

JSONInput (JSON)Invalid

lines: 1chars: 28Size: 28 BUTF-8

JAVASCRIPTOutput (JAVASCRIPT)

Auto-generated

Converted output will appear here

lines: 0chars: 0Size: 0 BUTF-8

Size change: -100.00%TOML compliant: v1.0.0

Tool guide

Accurate conversion

Input is processed by this tool’s dedicated converter.

Local processing

Your input is processed in your browser and is not uploaded.

Ready-to-use output

Copy the result or save it as a file.