How to use JSON Flattener

  1. Paste nested JSON in the input area.
  2. Click Convert to flatten it into a single-level object with dot-separated paths.
  3. Copy or download the flattened JSON.

Example

Input

{"user":{"id":1,"profile":{"name":"Alice"}},"tags":["dev","tools"]}

Output

{
  "user.id": 1,
  "user.profile.name": "Alice",
  "tags.0": "dev",
  "tags.1": "tools"
}

Frequently asked questions

When is JSON flattening useful?
Flattened JSON is easier to work with in spreadsheets, logs, and some analytics tools that expect key-value pairs.
How are arrays handled?
Array elements are indexed with numeric segments like tags.0, tags.1, and so on.

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