Common use cases
Useful for everyday checks, development verification, format checks before sharing, and lightweight tasks you want to finish in the browser.
JSON Format / Validate
Paste JSON to format and inspect it in-place. If errors occur, check for missing commas or closing brackets first.
About this tool
Paste JSON to format and check for errors.
Practical examples
- Paste an API response to format it and make nested keys easier to read.
- Check JSON syntax before sharing and catch extra commas or broken line breaks.
How to use
- Enter the value you want to check in the JSON Format / Validate input or settings area.
- Choose the required options, then press the action button.
- Review the result, then copy or download it when needed.
Input data and safety
Paste JSON to format and inspect it in-place. If errors occur, check for missing commas or closing brackets first.
Input is processed in the browser by default and is not saved to a server for tool processing. If you handle sensitive data, review the result before sharing it.
Related tools
Related tools help you continue conversion, validation, and pre-sharing checks in the same browser workflow.
Next steps
- Base64 encode / decodeWhen you need to pass formatted JSON as a temporary string, Base64 can make it easier to handle.
- Character CounterBefore pasting into a form with limits, check character and byte counts.
FAQ
Is the input for JSON Format / Validate sent to a server?
Core processing happens in your browser and input is not saved to a server for tool processing.
Can I use JSON Format / Validate on a phone?
Yes. The input and result areas are designed to adapt to phone and tablet browsers.
What should I check before sharing the result?
Review the result before sharing it, especially when it may include sensitive or personal information.