About JSON Validator
Parse JSON in the browser and report the exact line and column of any error.
Frequently asked questions
- What does a JSON validator check?
- It parses the text against JSON syntax: quoted keys, commas, brackets, and valid literals. JSONKitt reports the first parse error with line and column so you can fix trailing commas, single quotes, or comments that JSON does not allow.
- Is JSON validation done on a server?
- No. Validation uses the browser JSON.parse API. Your payload stays in this tab.
- JSONLint vs JSON validator — what is the difference here?
- Same idea as JSONLint: paste JSON, get syntax errors, then reformat. JSONKitt also pretty-prints on success and links to minify, tree view, and converters without leaving the site.