Flatten Nested JSON Online

Convert nested object properties into a flat set of dot-separated paths, such as customer.address.pinCode. This can make API records easier to inspect before working with tabular exports.

How to flatten JSON

1. Paste valid JSON or select a local file.
2. Select Flatten Nested JSON.
3. Review the flattened result and copy or download it.

Values and arrays

Flattening changes nested object paths, not the underlying meaning of values. Arrays remain array values represented as JSON text for nested fields; they are not expanded into one row per item. Keep codes and identifiers as strings when their leading zeroes matter.

See the global JSON flattening guide or visit the India tools hub.