Free JSON Formatter – No Ads
Formatted output will appear here.
Why Use a JSON Formatter?
JSON (JavaScript Object Notation) is widely used in APIs, config files, logs, and many modern applications. A formatter helps convert raw, minified JSON into a clean, indented format that is easier to read and debug.
🔍 When should you use it?
- When debugging a large API response
- When pasting JSON into documentation or presentations
- When modifying deeply nested JSON structures
- When validating auto-generated JSON from scripts or webhooks
📌 Example Input:
{"user":{"id":1,"name":"Alice","active":true,"roles":["admin","editor"]}}
✅ Example Output:
{ "user": { "id": 1, "name": "Alice", "active": true, "roles": [ "admin", "editor" ] } }
This formatting tool is ideal for frontend/backend developers, QA testers, and analysts working with structured data. It operates 100% in-browser — your data never leaves your machine, ensuring privacy and security.
Related Tools
Try our JSON Validator,JSON Schema Validator,JSON Converter, andJSONPath Evaluator.
FAQ
Is my JSON sent to a server?
No. Everything runs in your browser. Your data never leaves your device.
Is it really free and without ads?
Yes. SimplyJSON is 100% free and ad‑free.
Can I copy and download formatted JSON?
Yes. Use the Copy and Download buttons beside the editor.