JSON Validator (Lint)
Instantly validate your JSON code. Catch missing commas, braces, and quotes with our smart error highlighter.
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About JSON Validator (Lint)
Our JSON Validator (Lint) is a critical tool for ensuring your data is structurally sound and compliant with the JSON specification (RFC 8259). Syntax errors in JSON can crash applications and break API integrations. This tool doesn't just tell you if your JSON is valid; it provides precise error messages and line numbers if it's not, helping you debug issues like missing commas, unquoted keys, or trailing characters. It's a must-have for REST API debugging and ensuring your configuration files are error-free.
How to Use JSON Validator (Lint)
Paste JSON
Enter the JSON code you want to validate into the editor.
Check Status
The tool instantly analyzes the syntax and provides a 'Valid' or 'Invalid' status.
Fix Errors
If errors are found, use the provided line numbers and descriptions to correct your JSON.