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JSON Validator - Live Checking with Exact Error Location

Paste JSON and get instant pass/fail with the exact line and column of any syntax error.

Find the Broken Bracket in Seconds

A single missing comma can break an entire deployment. AiLoveKit's JSON validator checks as you type, reports the parser error, and pinpoints the offending line and column with a code snippet - so you fix the problem instead of hunting for it. Because validation runs locally, it is safe to paste payloads containing keys, tokens, or personal data.

What Gets Checked

Need to pretty-print a valid payload afterwards? Use JSON Formatter, or shrink it with JSON Minifier.

Frequently Asked Questions

Does it show where the error is?

Yes - the parser message plus the exact line and column, with the failing line shown underneath.

Is my data sent anywhere?

No. Validation runs in your browser tab, so secrets, tokens, and production payloads stay on your device.

What JSON features are supported?

Standard JSON (RFC 8259): objects, arrays, strings, numbers, booleans, and null. Comments are not valid JSON and will be flagged.