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Frequently Asked Questions
How does the JSON validator work?
Simply paste your JSON into the editor and JSON Nova will instantly validate it, highlighting any syntax errors with detailed error messages and line numbers.
Can it validate large JSON files?
Yes, our validator can handle JSON files up to 50MB. Validation happens in real-time using Web Workers to keep the interface responsive.
Does it show where the errors are?
Absolutely! JSON Nova highlights syntax errors directly in the editor with precise line numbers and helpful error messages to fix issues quickly.
Is JSON validation done on the server?
No, all validation happens locally in your browser. Your JSON data never leaves your computer, ensuring complete privacy and security.
What types of JSON errors can it detect?
The validator detects missing brackets, trailing commas, unquoted keys, invalid escape sequences, duplicate keys, and all common JSON syntax errors.
Does it validate JSON schema?
Currently, JSON Nova validates JSON syntax. Schema validation features are planned for future releases based on user demand.
Can it auto-fix JSON errors?
Yes! Use the 'Format / Repair' button to automatically fix common JSON syntax errors like missing quotes, trailing commas, and more.
Is the validator free to use?
Yes, completely free with no registration required. Validate unlimited JSON files without any restrictions or paywalls.
Does it work with JSON5 or JSONC?
JSON Nova primarily supports standard JSON. For JSON5 or JSONC (with comments), use the repair feature to convert to valid JSON.
Can I validate API responses?
Yes, paste any API response directly into the validator to check if it's valid JSON and identify any formatting issues.