Paste JSON to validate and format it. Errors point to the exact line, and your numbers and key order stay as written.
The formatted JSON appears here as you type.
Ctrl+F search · Ctrl+↵ copy result · Ctrl+Shift+F result to input · Esc then Tab leaves the editor
No. Checking, formatting and repair run in your browser. Nothing is uploaded, stored or turned into a share link.
Key order has no meaning in JSON, but people read files top to bottom and tools compare them line by line. Formatting keeps the order you had unless you tick Sort keys.
It removes every space and line break that JSON does not need, which makes files smaller for APIs and storage. The data is unchanged.
Yes. Use Send to under the result, or open JSON to CSV, which flattens nested fields into columns.
Guides, common conversions and useful next steps.
Use the action beside a finished result to send it directly, or open another tool: