Question 1

How do I use the JSON Flatten / Unflatten?

Accepted Answer

Use the Easy/Complex buttons to try sample inputs Click the copy button to copy output to clipboard

Question 2

What can I use the JSON Flatten / Unflatten for?

Accepted Answer

Quick data transformation during development Debugging and validating data formats Generating test data and mock values

Question 3

Is the JSON Flatten / Unflatten free and private?

Accepted Answer

Yes — it runs in your browser, requires no signup for basic use, and your data never leaves your device. DevToolsSurf has 280+ tools across 26 categories — all running in your browser for maximum privacy.

JSON Flatten / Unflatten

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