JSON validator
Check whether text is valid JSON and report the error.
Result
About JSON validator
JSON validator is a free online developer tool. Check whether text is valid JSON and report the error.
Enter your input, adjust the options and run it. The result appears right next to the form, is never stored, and you can copy or save it in one click. No account is needed.
How to use JSON validator
- Type or paste your input into the form.
- There is nothing to configure, the defaults work for most inputs.
- Press Run, or use Ctrl/⌘ + Enter.
- Copy or save the result from the panel on the right.
JSON validator FAQ
What does JSON validator do?
Check whether text is valid JSON and report the error.
Is JSON validator free to use?
Yes. JSON validator is free, with no sign-up or account required.
Is my data safe?
Results are never stored. See our privacy policy for details.
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