ConvertTOONConvertTOON

JSON Flatten & Unflatten

Flatten nested JSON objects to dot notation or unflatten flat objects back to nested structure. Supports arrays and deep nesting.

🔒 100% Client-side⚡ Instant🆓 Free forever

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About JSON Flatten & Unflatten
Flatten nested JSON objects to dot notation or unflatten flat objects back to nested structure. Supports arrays and deep nesting. This tool is part of the ConvertTOON developer tools suite, providing 40+ free online utilities for developers.
All processing happens entirely in your browser — your data never leaves your device. No sign-up required, no data collection, completely free and private.
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