Input JSON
Formatted Output
Formatted JSON will appear here...
Ctrl+Enter to format
🌳 JSON Tree View
Format JSON to see the tree view...
About JSON Formatting
This tool formats JSON into readable objects and arrays with indentation, validates syntax, and highlights errors so you can fix them quickly.
- Format JSON for APIs, logs, and configuration files
- Validate JSON syntax instantly in your browser
- Minify JSON for compact storage and transmission
Need to check syntax first? Try the JSON Validator. Want compact JSON after formatting? Use the JSON Minifier.
Frequently Asked Questions
What does formatting JSON do?
JSON formatting adds indentation and line breaks so nested objects and arrays become easy to read.
Can I use this tool for API responses?
Yes. Paste API JSON and format it to inspect structure, keys, and values clearly.
Is my JSON sent to a server?
No. Formatting is done in your browser, so your data stays private.