About this tool
The validator checks whether your text is valid JSON and points to the line and column when the browser provides a position.
How to use it
- Paste JSON or choose a file.
- Select Validate JSON.
- Use the reported location to fix any syntax error.
Common uses
Useful for checking configuration, API requests and responses, exported data, and hand-edited JSON files.
Private by default
This tool runs entirely in your browser. Nothing you paste or open is sent to our servers.