JSON Unflatten
Restore flat dot-notation keys back into nested JSON objects; numeric keys become arrays.
How to use
JSON Unflatten is a free online tool in our developer tools collection. Restore flat dot-notation keys back into nested JSON objects; numeric keys become arrays. Just enter or upload your content above and the result updates instantly — copy or download it in one click. No signup, no installation, and everything runs locally in your browser: your files are never uploaded to any server.
Frequently Asked Questions
How do I use JSON Unflatten?
Restore flat dot-notation keys back into nested JSON objects; numeric keys become arrays.. Open the tool above, enter or upload your content, and the result appears instantly — then copy or download it. No signup required.
Is JSON Unflatten free?
Yes. JSON Unflatten is completely free with no signup, no login and no usage limit. You can use it as often as you like.
Do I need to upload my files? Is my data safe?
No upload needed. Every tool on Wevva Tools runs locally in your browser, so your files and text never leave your device — nothing is stored on our servers.
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