New developer utility
JSON Flatten Unflatten Online
Flatten nested JSON into path-value pairs or unflatten JSON paths back into objects for debugging, imports, and data mapping workflows.
Use this toolPaste input and run the tool.
How to use JSON Flatten Unflatten Online
JSON Flatten Unflatten Online is a focused browser tool for quick technical checks. Paste a safe sample, run the tool, and copy the output into documentation, tickets, QA notes, or development workflows.
Flatten nested JSON into path-value pairs or unflatten JSON paths back into objects for debugging, imports, and data mapping workflows.
Input example
{"user":{"name":"Asha"},"roles":["admin"]}Output example
{
"$.user.name": "Asha",
"$.roles[0]": "admin"
}Privacy
This tool is designed for browser-side processing. Avoid pasting passwords, private keys, access tokens, customer records, confidential URLs, regulated data, or unreleased business information.
FAQ
JSON Flatten and Unflatten FAQ
Is this tool free?
Yes. It is free to use online and does not require signup.
Can I upload a file?
Yes. Text-like files can be loaded into the input panel. Review the content before running the tool.
Does this page have hreflang?
Yes. The page links to English and all localized versions for search engines.
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English
JSON Flatten Unflatten Online
Flatten nested JSON into path-value pairs or unflatten JSON paths back into objects for debugging, imports, and data mapping workflows.