Generate type-safe Ruby Dry::Struct classes from JSON objects.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Paste your sample JSON payload.
Name your Ruby model class.
Copy or download the generated Dry::Struct file.
dry-struct is a gem for creating typed data structures with runtime type coercion in Ruby.
Yes, ISO 8601 timestamps are mapped to Types::JSON::DateTime.
Zero-egress companion tools in the Developer Tools suite
Format, validate, repair, and minify JSON data instantly.
Decode, verify claims, inspect headers, and check token expiry.
Test regex patterns with flags, group captures, and live matches.
Compare text or source code side-by-side with visual diffs.
