A valid JSON document is syntactically parseable, but syntactic validity is only the first step in checking an API payload.
Use the formatter to separate syntax errors…
Use the formatter to separate syntax errors from schema errors. A parser can confirm that a document is JSON without confirming that it contains the fields your application expects.
When an error is reported, inspect the…
When an error is reported, inspect the character near the reported location. Common causes include trailing commas, single-quoted strings, unescaped control characters, and missing closing brackets.
Do not paste credentials, access tokens, or…
Do not paste credentials, access tokens, or private customer data into an online utility. For sensitive payloads, use a local editor or an internal development environment.
Use the related tool carefully
This guide is paired with a browser-only utility. The tool is a practical aid for small examples and inspection; it is not a substitute for application testing, a formal data pipeline, or professional review where the decision has higher consequences.
Open the related JSON Formatter and Validator