Toolzy

JSON Flatten

Flatten nested JSON into dot-notation keys.

Input
Output

Convert nested JSON objects and arrays into a flat object with dot and bracket path keys.

How to use

  1. Paste nested JSON.
  2. The flattened version appears.
  3. Copy the dot-notation result.

Frequently asked questions

How are arrays shown?
As bracketed indices, e.g. items[0].name.
Can I reverse it?
This tool only flattens; the keys clearly encode the original structure.

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