📖 What is JSON Formatter?
A JSON Formatter (also called a JSON Beautifier or Pretty Printer) takes minified or unreadable JSON and reformats it with proper indentation and line breaks. It makes JSON data easy to read, debug and share with your team.
💡 Example
Input
{"name":"Alice","age":30,"skills":["JS","Python"]}
Output
{
"name": "Alice",
"age": 30,
"skills": [
"JS",
"Python"
]
}
🛠️ Common Use Cases
- Debugging API responses that return minified JSON
- Reviewing configuration files before deployment
- Sharing readable JSON in code reviews
- Inspecting webhook payloads
- Preparing JSON for documentation
❓ Frequently Asked Questions
What is JSON formatting? ▾
JSON formatting adds indentation and line breaks to make JSON data readable. Minified JSON removes all whitespace to save bandwidth, while formatted JSON is easier for humans to read and debug.
Is my data safe? ▾
Yes — 100%. All formatting happens in your browser using JavaScript. Your data never leaves your computer and is never sent to any server.
What indentation should I use? ▾
2 spaces is the most common standard (used by most style guides). 4 spaces is also common in some languages. Tab indentation is used in some editors.
Can I format invalid JSON? ▾
No — the formatter validates your JSON first. If your JSON has errors (missing quotes, trailing commas), it will show you an error message with the position of the problem.
🔒
Your data stays private. All processing happens entirely in your browser using JavaScript. Nothing is ever sent to our servers. You can even use this tool offline after the page loads.