JSON to Code — free online converter
You got a chunk of JSON back from an API, and now you have to type out all the matching structs and types by hand. It's slow, and one small typo breaks everything. We added a free tool that does it for you — JSON to Code — right in your browser.
What it does
You paste any JSON, and it instantly builds the matching code for you: structs for Go, classes for Python (dataclasses), and types for TypeScript. The shapes and field names come straight from your JSON, so the output is ready to drop into your project.
Nothing leaves your device
The whole thing runs in your browser. Your JSON is never uploaded, never sent to a server, and nothing is saved. You can even paste private or work data and it stays on your machine.
How to use it
- Open JSON to Code and paste your JSON into the box.
- Pick the language you want — Go, Python, or TypeScript.
- Copy the generated code and paste it into your project.
It's free with no limit. There are more small tools on the Apps page.