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Data
Flatten nested JSON into path keys or unflatten path-key objects back into nested JSON.
Processing is local to this browser. DevPaste does not upload pasted content, JWTs, .env values, editor contents, or HMAC secrets to a server.
Flatten actions
Flatten nested JSON into path keys or rebuild nested JSON from flattened paths.
JSON input
Paste nested JSON or flattened path-key JSON.
Output
Flattened or unflattened JSON result
No output yet
Run Flatten JSON or Unflatten JSON to generate output.