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JSON Validator
Select or drop your file
Files never leave your deviceMax size: 100MB
Frequently Asked Questions
Is validating JSON with PDFPilot really free?
Yes. JSON Validator is completely free to use, with no sign-up or account required.
Are my files uploaded to a server?
No. The validation runs entirely in your browser using JSON.parse. Your file is never uploaded to PDFPilot's servers.
What kind of error message do I get for invalid JSON?
The exact error your browser's own JSON parser produces, which typically identifies what kind of syntax problem was found and often its approximate position in the file.
Does this download anything?
No — this tool just checks validity and shows the result on screen. Use JSON Formatter if you also want a downloadable, cleanly-indented copy of valid JSON.
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