How it works

The parser uses the browser JSON implementation. Valid JSON is pretty-printed with two-space indentation; invalid input returns the parser error.

JSON.parse(input) → JSON.stringify(value, null, 2).

Common questions

Does this upload my JSON?

No. Parsing runs in this browser and the input is not sent to a DevKit server.

Why is my JSON invalid?

Check quotes, commas, brackets and that property names use double quotes.

Independent developer utility. Review output before using it in production.