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Data utility
JSON Flatten / Unflatten
Convert nested JSON into key paths and back. Private by default, with all processing done in your browser.
Result
Your result will appear here.Ready — JSON stays in your browser.
How to use this tool
A quick json flatten / unflatten workflow
Convert nested JSON into key paths and back. Paste or enter your data, use the available controls, then copy or download the result when it is ready.
- Everything runs in your browser, so your working data stays on your device.
- No account, installation, or upload is needed.
- Use the related utilities below when you need the next step in your workflow.