Início
Tom Utilities

Achatar e restaurar JSON

Ferramentas JSON

Converta JSON aninhado em chaves com pontos e reconstrua objetos aninhados a partir de dados planos.

Entrada

Resultado

Como usar

Flatten nested JSON

Paste nested JSON and run Flatten. Arrays become numeric keys, for example user.roles.0.

  1. Paste nested JSON.
  2. Click Flatten.
  3. Copy the flat JSON output.

Unflatten key paths

Paste a flat object and run Unflatten. Numeric path segments are converted back into arrays automatically.

Perguntas frequentes

How are arrays represented?

By default each array element gets a numeric segment, such as items.0.name. Empty arrays and objects are preserved as values.

Can I use a different separator?

The UI uses a dot separator. For custom separators, use the underlying library behavior in your own code.