All Tools VerseFlatten JSON Object
Flatten a nested JSON object into a single level with dot and bracket paths as keys. Free, private, and works entirely in your browser.
- Runs in your browser
- Nothing uploaded
- Free, no sign-up
Processed locally in your browser. Your text never leaves this tab.
How to Use Flatten JSON Object
- Paste your JSON. Drop in a nested JSON object or array.
- Flatten. Select the button to collapse the structure.
- Read the paths. Each value gets a key path such as user.name or items[0].
- Copy the result. Use the copy button to grab the flat JSON.
Frequently Asked Questions
What does flattening do?
It turns a nested object into a flat one where each key is the full path to a value, which is handy for diffs and spreadsheets.
How are arrays handled?
Array items use bracket index paths, such as roles[0] and roles[1], so the position is preserved.
Can I keep the original?
Yes. The tool does not change your input; it produces a new flattened version you can copy.
Is my data sent anywhere?
No. Everything runs in your browser, so the JSON you paste is never uploaded.
Is it free?
Yes. Every tool here is free to use with no sign up.
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