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JSON Flatten & Unflatten
Convert between nested JSON and flat dot-notation key-value pairs
Flatten (nested → flat)
Unflatten (flat → nested)
Separator:
Dot (.)
Slash (/)
Underscore (_)
Double underscore (__)
Preserve arrays with [n]
📥 Nested JSON (Input)
📤 Flattened JSON (Output)
📋 Copy
⬇️ Download
🔄 Swap
Examples
Basic Object
Deeply Nested
With Arrays
Config File
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