Flatten JSON

Input

Output

Flatten and Unflatten JSON

Flatten nested JSON into one level of path keys like customer.city, or rebuild the nesting from those keys.

How to use it

Paste nested JSON, or choose Unflatten and paste flat JSON.
Pick a separator: dot, slash, underscore or your own.
Copy the result.

What it does

Both directions
Array indexes kept in the keys
Any separator

Questions

When is flattening useful?: For spreadsheets, environment variables, search indexes and config systems that only accept flat keys.
Is my data uploaded?: No. Bracely runs entirely in your browser, so nothing you paste or open leaves your device.

More JSON tools

Bracely has more than 65 JSON tools in one page. Related ones:

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