JSON Tools — Format, Validate, and Inspect JSON Locally

Fast route

Request, config, or parser errorOpen JSON ValidatorCheck parseability before you spend time reading the payload. Valid but compressed or messyOpen JSON FormatterPretty-print or minify after the JSON already parses. Unexpected token or invalid JSONFind the parse errorCompare broken examples with the smallest valid fix. Secrets, PII, or production dataUse the safety workflowRedact first, then format only the minimum useful example.

JSON Formatter

Best when the JSON already parses and the problem is readability: a compact API response, a nested fixture, a webhook sample, or a config snippet that needs clean indentation.

Open formatter Read JSON safety guide

JSON Validator

Best when you see a parse error, edited the payload by hand, copied from logs, or need to rule out syntax before debugging an API or config problem.

Open validator When to validate first

Pick the page that matches your job

Need	Why it matters
“The API says the body is invalid”	Use the JSON Validator before changing application code or retrying the request.
“DevTools gave me one unreadable line”	Use the JSON Formatter to expand nested fields, then copy a readable version into your notes or ticket.
“This includes tokens or customer records”	Follow How to Format JSON Safely so the cleaned example does not leak more than the original payload.

Start with the job in front of you

API request body will not parse: open JSON Validator first, then use JSON parse error examples if the error message is unclear.
Payload is valid but impossible to read: open JSON Formatter to pretty-print it, inspect nested keys, and copy the cleaned result back out.
Unsure whether to validate or format first: read JSON Formatter vs Validator for the quick decision path.
Payload contains tokens, customer data, or production details: read How to Format JSON Safely before you paste it anywhere.

Read one of these if the tool is not enough

JSON parse error examples — use this when the validator says the payload is broken and the parser message is hard to interpret.
How to format JSON safely — use this when the payload may contain tokens, customer data, or production details.
How to validate JSON before formatting — use this when you are not sure which job comes first.
JSON formatter vs validator — use this when two tools sound similar and you want the fast answer.
Why local code tools are safer — use this when privacy is the reason you are avoiding server-side tools.