JSON Codegen
Turn sample JSON into types/structs for TS, Go, Java, Kotlin, C#, Swift, Rust, Python, and more — or SQL INSERT.
All processing on this page runs locally in your browser unless noted otherwise.
Input
Result
Local offline processing — data is never uploaded
How to use
- Paste representative JSON.
- Pick language, root name, naming style, and optional fields.
- Copy or download the generated code.
Example
{
"id": 1,
"userName": "ada",
"active": true,
"profile": { "city": "Shanghai", "age": 30 }
}FAQ
Is nested type inference perfect?
It is best-effort from the sample. Review generated types before shipping.
What does SQL mode expect?
An object or array of objects; each row becomes an INSERT.