JSON Validator
Validate a JSON document and report syntax errors with location details when available.
Workspace
How to use this tool
Paste a document and choose Validate. Fix the reported syntax before formatting or downloading.
What to know
The validator checks JSON syntax, not a custom JSON Schema or the business meaning of the data.
Frequently asked questions
How do I use JSON Validator?
Paste a document and choose Validate. Fix the reported syntax before formatting or downloading.
What should I check before using the result?
The validator checks JSON syntax, not a custom JSON Schema or the business meaning of the data.
Is an account required?
No. This tool is free and the calculation takes place in your browser.