Invalid JSON can break API requests, imports and application configuration. A validator helps identify syntax problems before the data is passed to another system.
How to validate JSON
Paste your data into the JSON Validator and run the check. If the input is invalid, use the reported error location as a starting point and inspect the surrounding keys, values and separators.
Common JSON syntax errors
Typical problems include missing commas between properties, unmatched braces or brackets, unescaped quotation marks, trailing commas, and property names that are not correctly quoted.
Make difficult JSON easier to inspect
Minified JSON can be difficult to debug. Use the JSON Formatter to add indentation and line breaks, then validate the formatted result. If you need the compact version again, use the JSON Minifier.
Validate before converting
Always validate source JSON before converting it to CSV, XML or YAML. This separates syntax problems from conversion-specific issues and makes troubleshooting much faster.