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JSON Flatten / Unflatten

Flatten nested JSON to dot-notation keys and back

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Input

Sep:

Output

{
  "user.name": "Ada Lovelace",
  "user.address.city": "London",
  "user.address.zip": "EC1A 1BB",
  "settings.theme": "dark",
  "settings.notifications": true
}

Flatten converts nested objects to dot-notation keys. Unflatten reverses it. Arrays are left as-is.