JSON to Types help

Turn a JSON example into typed interfaces or structs.

Steps

1. Paste a representative JSON value.
2. Choose TypeScript or Go, and set the root type name.
3. Copy the output.

How it infers

• Arrays of objects are merged into one shape; a field missing from some items becomes optional (? in TS, a pointer with omitempty in Go).
• null alongside a value produces a nullable type.
• Nested objects get their own named interface / struct.

Notes

• It is a best effort from one sample; widen or narrow the types by hand as needed.
• Nothing is uploaded.

Everything runs in your browser. Nothing you enter or drop is uploaded.