JSON formatter
Make JSON easier to read with consistent indentation.
Processed on your device. Your files are never uploaded. · Free · No signup
Three steps. That’s all.
Paste JSON, validate it and choose the indentation.
Adjust the options and review the result.
Copy or use the result directly.
A little more about this tool
Make JSON easier to read with consistent indentation. JSON does not allow comments or trailing commas. Formatting cannot repair arbitrary invalid syntax.
Why this tool is useful
- Inspect or transform data without sending it to a remote service.
- Use it for free without creating an account.
- Use the same focused interface on mobile or desktop.
Good to know
What should I know before using JSON formatter?
JSON does not allow comments or trailing commas. Formatting cannot repair arbitrary invalid syntax.
Does my input leave my device?
No. This tool processes your input in your browser. It does not send your files or entered content to a conversion service.
Do I need an account or a subscription?
No account, payment or subscription is required. Device memory and browser capabilities may limit large operations.