HOW IT WORKSUse JSON Validator in three simple steps
1Add content
Paste or import a UTF-8 file up to 5 MB, or load an example.
2Validate syntax
Run the action below the editors. Review any error before continuing.
3Review the status
Fix reported errors and validate again. Editing clears the previous status.
ABOUT THIS TOOLJSON Validator
Check JSON syntax and pinpoint errors immediately.
It means the syntax is valid. This tool does not validate a schema, required fields or business rules. Duplicate property names are not flagged.
FAQFrequently asked questions
Does valid JSON mean the data is correct?
It means the syntax is valid. This tool does not validate a schema, required fields or business rules. Duplicate property names are not flagged.
How do I find an error?
The parser message is shown. When it includes a character position, the tool reports its line and column and selects the location in the input.
Is this tool free and private?
Yes. No account is needed, and your input is processed locally in your browser without being uploaded to FormatKit.