JSON Validator
Check whether a JSON document can be parsed successfully.
Developer & securityFREE TOOL
JSON Formatter
Format JSON into a readable, indented document.
Runs in your browser
Your input
Your input stays in your browser. No account needed.
Your result
↗A little input.
A little input.
A useful result.
Fill in the details and run the tool.
Your result will appear here.
No registrationProcessed locallyFree to use
How to use JSON Formatter
Paste valid JSON with double-quoted keys and no trailing commas. Values outside JavaScript’s safe integer range may lose precision.
- Paste your text or load the example.
- Check your input and run the tool.
- Review, copy or download the result.
Example input
{"name":"ChuHaiJiHe","free":true,"tools":["SEO","Marketing"]}Frequently asked questions
How do I use JSON Formatter?
Paste valid JSON with double-quoted keys and no trailing commas. Values outside JavaScript’s safe integer range may lose precision.
Is JSON Formatter free to use?
JSON Formatter is free and does not require an account. Copy or download the result for your workflow.
What happens to my input?
Inputs and files are processed on your device. Anonymous usage events never contain your input or generated output.